diff --git a/frontend/app/review-design/page.tsx b/frontend/app/review-design/page.tsx
index ee36da4..9a60f48 100644
--- a/frontend/app/review-design/page.tsx
+++ b/frontend/app/review-design/page.tsx
@@ -160,13 +160,12 @@ export default function ReviewTestsPage() {
             {/* 條件渲染當前選中的測驗組件 */}
             {activeTab === 'FlipMemoryTest' && (
               <FlipMemoryTest
-                word={mockCardData.word}
-                definition={mockCardData.definition}
-                example={mockCardData.example}
-                exampleTranslation={mockCardData.exampleTranslation}
-                pronunciation={mockCardData.pronunciation}
-                synonyms={mockCardData.synonyms}
-                difficultyLevel={mockCardData.difficultyLevel}
+                cardData={{
+                  ...mockCardData,
+                  id: currentCard?.id || `card-${currentCardIndex}`,
+                  synonyms: mockCardData.synonyms || []
+                }}
+                onAnswer={handleAnswer}
                 onConfidenceSubmit={handleConfidenceSubmit}
                 onReportError={handleReportError}
               />
@@ -187,17 +186,13 @@ export default function ReviewTestsPage() {
 
             {activeTab === 'SentenceFillTest' && (
               <SentenceFillTest
-                word={mockCardData.word}
-                definition={mockCardData.definition}
-                example={mockCardData.example}
-                filledQuestionText={mockCardData.filledQuestionText}
-                exampleTranslation={mockCardData.exampleTranslation}
-                pronunciation={mockCardData.pronunciation}
-                difficultyLevel={mockCardData.difficultyLevel}
-                exampleImage={mockCardData.exampleImage}
+                cardData={{
+                  ...mockCardData,
+                  id: currentCard?.id || `card-${currentCardIndex}`,
+                  synonyms: mockCardData.synonyms || []
+                }}
                 onAnswer={handleAnswer}
                 onReportError={handleReportError}
-                onImageClick={handleImageClick}
               />
             )}
 
@@ -217,10 +212,11 @@ export default function ReviewTestsPage() {
 
             {activeTab === 'VocabListeningTest' && (
               <VocabListeningTest
-                word={mockCardData.word}
-                definition={mockCardData.definition}
-                pronunciation={mockCardData.pronunciation}
-                difficultyLevel={mockCardData.difficultyLevel}
+                cardData={{
+                  ...mockCardData,
+                  id: currentCard?.id || `card-${currentCardIndex}`,
+                  synonyms: mockCardData.synonyms || []
+                }}
                 options={vocabChoiceOptions}
                 onAnswer={handleAnswer}
                 onReportError={handleReportError}
@@ -229,10 +225,11 @@ export default function ReviewTestsPage() {
 
             {activeTab === 'SentenceListeningTest' && (
               <SentenceListeningTest
-                word={mockCardData.word}
-                example={mockCardData.example}
-                exampleTranslation={mockCardData.exampleTranslation}
-                difficultyLevel={mockCardData.difficultyLevel}
+                cardData={{
+                  ...mockCardData,
+                  id: currentCard?.id || `card-${currentCardIndex}`,
+                  synonyms: mockCardData.synonyms || []
+                }}
                 options={vocabChoiceOptions}
                 exampleImage={mockCardData.exampleImage}
                 onAnswer={handleAnswer}
@@ -243,10 +240,11 @@ export default function ReviewTestsPage() {
 
             {activeTab === 'SentenceSpeakingTest' && (
               <SentenceSpeakingTest
-                word={mockCardData.word}
-                example={mockCardData.example}
-                exampleTranslation={mockCardData.exampleTranslation}
-                difficultyLevel={mockCardData.difficultyLevel}
+                cardData={{
+                  ...mockCardData,
+                  id: currentCard?.id || `card-${currentCardIndex}`,
+                  synonyms: mockCardData.synonyms || []
+                }}
                 exampleImage={mockCardData.exampleImage}
                 onAnswer={handleAnswer}
                 onReportError={handleReportError}
diff --git a/frontend/components/review/ReviewRunner.tsx b/frontend/components/review/ReviewRunner.tsx
index bcd5faa..65b152e 100644
--- a/frontend/components/review/ReviewRunner.tsx
+++ b/frontend/components/review/ReviewRunner.tsx
@@ -149,15 +149,8 @@ export const ReviewRunner: React.FC<TestRunnerProps> = ({ className }) => {
     case 'flip-memory':
       return (
         <FlipMemoryTest
-          word={cardData.word}
-          definition={cardData.definition}
-          example={cardData.example}
-          exampleTranslation={cardData.exampleTranslation}
-          pronunciation={cardData.pronunciation}
-          synonyms={cardData.synonyms}
-          difficultyLevel={cardData.difficultyLevel}
+          {...commonProps}
           onConfidenceSubmit={(level) => handleAnswer('', level)}
-          onReportError={() => openReportModal(currentCard)}
         />
       )
 
@@ -172,17 +165,7 @@ export const ReviewRunner: React.FC<TestRunnerProps> = ({ className }) => {
     case 'sentence-fill':
       return (
         <SentenceFillTest
-          word={cardData.word}
-          definition={cardData.definition}
-          example={cardData.example}
-          exampleTranslation={cardData.exampleTranslation}
-          pronunciation={cardData.pronunciation}
-          synonyms={cardData.synonyms}
-          difficultyLevel={cardData.difficultyLevel}
-          exampleImage={cardData.exampleImage}
-          onAnswer={handleAnswer}
-          onReportError={() => openReportModal(currentCard)}
-          onImageClick={openImageModal}
+          {...commonProps}
         />
       )
 
@@ -198,39 +181,26 @@ export const ReviewRunner: React.FC<TestRunnerProps> = ({ className }) => {
     case 'vocab-listening':
       return (
         <VocabListeningTest
-          word={cardData.word}
-          definition={cardData.definition}
-          pronunciation={cardData.pronunciation}
-          difficultyLevel={cardData.difficultyLevel}
+          {...commonProps}
           options={generateOptions(currentCard, currentMode)}
-          onAnswer={handleAnswer}
-          onReportError={() => openReportModal(currentCard)}
         />
       )
 
     case 'sentence-listening':
       return (
         <SentenceListeningTest
-          word={cardData.word}
-          example={cardData.example}
-          exampleTranslation={cardData.exampleTranslation}
-          difficultyLevel={cardData.difficultyLevel}
+          {...commonProps}
           options={generateOptions(currentCard, currentMode)}
-          onAnswer={handleAnswer}
-          onReportError={() => openReportModal(currentCard)}
+          exampleImage={cardData.exampleImage}
+          onImageClick={openImageModal}
         />
       )
 
     case 'sentence-speaking':
       return (
         <SentenceSpeakingTest
-          word={cardData.word}
-          example={cardData.example}
-          exampleTranslation={cardData.exampleTranslation}
-          difficultyLevel={cardData.difficultyLevel}
+          {...commonProps}
           exampleImage={cardData.exampleImage}
-          onAnswer={handleAnswer}
-          onReportError={() => openReportModal(currentCard)}
           onImageClick={openImageModal}
         />
       )
diff --git a/frontend/components/review/review-tests/FlipMemoryTest.tsx b/frontend/components/review/review-tests/FlipMemoryTest.tsx
index 7df14b1..f7e17e9 100644
--- a/frontend/components/review/review-tests/FlipMemoryTest.tsx
+++ b/frontend/components/review/review-tests/FlipMemoryTest.tsx
@@ -1,28 +1,19 @@
-import { useState, useRef, useEffect } from 'react'
+import { useState, useRef, useEffect, memo, useCallback } from 'react'
 import AudioPlayer from '@/components/AudioPlayer'
-import { ErrorReportButton } from '@/components/review/shared'
+import {
+  ErrorReportButton,
+  ConfidenceButtons,
+  TestHeader,
+  HintPanel
+} from '@/components/review/shared'
+import { ConfidenceTestProps } from '@/types/review'
 
-interface FlipMemoryTestProps {
-  word: string
-  definition: string
-  example: string
-  exampleTranslation: string
-  pronunciation?: string
-  synonyms?: string[]
-  difficultyLevel: string
-  onConfidenceSubmit: (level: number) => void
-  onReportError: () => void
-  disabled?: boolean
+interface FlipMemoryTestProps extends ConfidenceTestProps {
+  // FlipMemoryTest specific props (if any)
 }
 
-export const FlipMemoryTest: React.FC<FlipMemoryTestProps> = ({
-  word,
-  definition,
-  example,
-  exampleTranslation,
-  pronunciation,
-  synonyms = [],
-  difficultyLevel,
+const FlipMemoryTestComponent: React.FC<FlipMemoryTestProps> = ({
+  cardData,
   onConfidenceSubmit,
   onReportError,
   disabled = false
@@ -56,25 +47,18 @@ export const FlipMemoryTest: React.FC<FlipMemoryTestProps> = ({
       clearTimeout(timer)
       window.removeEventListener('resize', updateCardHeight)
     }
-  }, [word, definition, example, synonyms])
+  }, [cardData.word, cardData.definition, cardData.example, cardData.synonyms])
 
-  const handleFlip = () => {
+  const handleFlip = useCallback(() => {
     if (!disabled) setIsFlipped(!isFlipped)
-  }
+  }, [disabled, isFlipped])
 
-  const handleConfidenceSelect = (level: number) => {
+  const handleConfidenceSelect = useCallback((level: number) => {
     if (disabled) return
     setSelectedConfidence(level)
     onConfidenceSubmit(level)
-  }
+  }, [disabled, onConfidenceSubmit])
 
-  const confidenceLabels = {
-    1: '完全不懂',
-    2: '模糊',
-    3: '一般',
-    4: '熟悉',
-    5: '非常熟悉'
-  }
 
   return (
     <div className="relative">
@@ -100,10 +84,10 @@ export const FlipMemoryTest: React.FC<FlipMemoryTestProps> = ({
           >
             <div className="p-8 h-full">
               <div className="flex justify-between items-start mb-6">
-                <h2 className="text-2xl font-bold text-gray-900">翻卡記憶</h2>
-                <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
-                  {difficultyLevel}
-                </span>
+                <TestHeader
+                  title="翻卡記憶"
+                  difficultyLevel={cardData.difficultyLevel}
+                />
               </div>
 
               <div className="space-y-4">
@@ -113,13 +97,13 @@ export const FlipMemoryTest: React.FC<FlipMemoryTestProps> = ({
 
                 <div className="flex-1 flex items-center justify-center mt-6">
                   <div className="bg-gray-50 rounded-lg p-8 w-full text-center">
-                    <h3 className="text-4xl font-bold text-gray-900 mb-6">{word}</h3>
+                    <h3 className="text-4xl font-bold text-gray-900 mb-6">{cardData.word}</h3>
                     <div className="flex items-center justify-center gap-3">
-                      {pronunciation && (
-                        <span className="text-lg text-gray-500">{pronunciation}</span>
+                      {cardData.pronunciation && (
+                        <span className="text-lg text-gray-500">{cardData.pronunciation}</span>
                       )}
                       <div onClick={(e) => e.stopPropagation()}>
-                        <AudioPlayer text={word} />
+                        <AudioPlayer text={cardData.word} />
                       </div>
                     </div>
                   </div>
@@ -136,37 +120,37 @@ export const FlipMemoryTest: React.FC<FlipMemoryTestProps> = ({
           >
             <div className="p-8 h-full">
               <div className="flex justify-between items-start mb-6">
-                <h2 className="text-2xl font-bold text-gray-900">翻卡記憶</h2>
-                <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
-                  {difficultyLevel}
-                </span>
+                <TestHeader
+                  title="翻卡記憶"
+                  difficultyLevel={cardData.difficultyLevel}
+                />
               </div>
 
               <div className="space-y-4 pb-6">
                 {/* 定義區塊 */}
                 <div className="bg-gray-50 rounded-lg p-4">
                   <h3 className="font-semibold text-gray-900 mb-2 text-left">定義</h3>
-                  <p className="text-gray-700 text-left">{definition}</p>
+                  <p className="text-gray-700 text-left">{cardData.definition}</p>
                 </div>
 
                 {/* 例句區塊 */}
                 <div className="bg-gray-50 rounded-lg p-4">
                   <h3 className="font-semibold text-gray-900 mb-2 text-left">例句</h3>
                   <div className="relative">
-                    <p className="text-gray-700 italic mb-2 text-left pr-12">{example}</p>
+                    <p className="text-gray-700 italic mb-2 text-left pr-12">{cardData.example}</p>
                     <div className="absolute bottom-0 right-0" onClick={(e) => e.stopPropagation()}>
-                      <AudioPlayer text={example} />
+                      <AudioPlayer text={cardData.example} />
                     </div>
                   </div>
-                  <p className="text-gray-600 text-sm text-left">{exampleTranslation}</p>
+                  <p className="text-gray-600 text-sm text-left">{cardData.exampleTranslation}</p>
                 </div>
 
                 {/* 同義詞區塊 */}
-                {synonyms.length > 0 && (
+                {cardData.synonyms && cardData.synonyms.length > 0 && (
                   <div className="bg-gray-50 rounded-lg p-4">
                     <h3 className="font-semibold text-gray-900 mb-2 text-left">同義詞</h3>
                     <div className="flex flex-wrap gap-2">
-                      {synonyms.map((synonym, index) => (
+                      {cardData.synonyms.map((synonym, index) => (
                         <span
                           key={index}
                           className="bg-white text-gray-700 px-3 py-1 rounded-full text-sm border border-gray-200"
@@ -184,29 +168,14 @@ export const FlipMemoryTest: React.FC<FlipMemoryTestProps> = ({
         </div>
       </div>
 
-      {/* 信心等級評估區 - 裸露在背景上 */}
-      {(
-        <div className="mt-6">
-          <div className="grid grid-cols-5 gap-3">
-            {[1, 2, 3, 4, 5].map(level => (
-              <button
-                key={level}
-                onClick={() => handleConfidenceSelect(level)}
-                disabled={disabled || selectedConfidence !== null}
-                className={`py-4 px-3 border-2 rounded-lg transition-all text-center font-medium ${
-                  selectedConfidence === level
-                    ? 'bg-blue-500 text-white border-blue-500 shadow-lg'
-                    : 'bg-white border-gray-300 text-gray-700 hover:bg-blue-50 hover:border-blue-400 shadow-sm'
-                } ${disabled || selectedConfidence !== null ? 'opacity-50 cursor-not-allowed' : 'hover:shadow-md'}`}
-              >
-                <div className="text-lg font-semibold">
-                  {confidenceLabels[level as keyof typeof confidenceLabels]}
-                </div>
-              </button>
-            ))}
-          </div>
-        </div>
-      )}
+      {/* 信心等級評估區 */}
+      <div className="mt-6">
+        <ConfidenceButtons
+          selectedLevel={selectedConfidence}
+          onSelect={handleConfidenceSelect}
+          disabled={disabled}
+        />
+      </div>
 
       <style jsx>{`
         .card-container {
@@ -263,4 +232,7 @@ export const FlipMemoryTest: React.FC<FlipMemoryTestProps> = ({
       `}</style>
     </div>
   )
-}
\ No newline at end of file
+}
+
+export const FlipMemoryTest = memo(FlipMemoryTestComponent)
+FlipMemoryTest.displayName = 'FlipMemoryTest'
\ No newline at end of file
diff --git a/frontend/components/review/review-tests/SentenceFillTest.tsx b/frontend/components/review/review-tests/SentenceFillTest.tsx
index 8792727..884f019 100644
--- a/frontend/components/review/review-tests/SentenceFillTest.tsx
+++ b/frontend/components/review/review-tests/SentenceFillTest.tsx
@@ -1,152 +1,108 @@
-import { useState, useMemo } from 'react'
-import AudioPlayer from '@/components/AudioPlayer'
+import React, { useState, useMemo, useCallback, memo } from 'react'
 import { getCorrectAnswer } from '@/utils/answerExtractor'
-import { ErrorReportButton } from '@/components/review/shared'
+import {
+  ErrorReportButton,
+  SentenceInput,
+  TestResultDisplay,
+  HintPanel
+} from '@/components/review/shared'
+import { FillTestProps } from '@/types/review'
 
-interface SentenceFillTestProps {
-  word: string
-  definition: string
-  example: string
-  filledQuestionText?: string
-  exampleTranslation: string
-  pronunciation?: string
-  synonyms?: string[]
-  difficultyLevel: string
-  exampleImage?: string
-  onAnswer: (answer: string) => void
-  onReportError: () => void
-  onImageClick?: (image: string) => void
-  disabled?: boolean
+interface SentenceFillTestProps extends FillTestProps {
+  // SentenceFillTest specific props (if any)
 }
 
-export const SentenceFillTest: React.FC<SentenceFillTestProps> = ({
-  word,
-  definition,
-  example,
-  filledQuestionText,
-  exampleTranslation,
-  pronunciation,
-  synonyms = [],
-  difficultyLevel,
-  exampleImage,
+const SentenceFillTestComponent: React.FC<SentenceFillTestProps> = ({
+  cardData,
   onAnswer,
   onReportError,
-  onImageClick,
   disabled = false
 }) => {
   const [fillAnswer, setFillAnswer] = useState('')
   const [showResult, setShowResult] = useState(false)
   const [showHint, setShowHint] = useState(false)
 
-  const handleSubmit = () => {
+  const handleSubmit = useCallback(() => {
     if (disabled || showResult || !fillAnswer.trim()) return
     setShowResult(true)
     onAnswer(fillAnswer)
-  }
+  }, [disabled, showResult, fillAnswer, onAnswer])
 
-  const handleKeyDown = (e: React.KeyboardEvent) => {
-    if (e.key === 'Enter' && !showResult && fillAnswer.trim()) {
-      handleSubmit()
-    }
-  }
+  const handleToggleHint = useCallback(() => {
+    setShowHint(prev => !prev)
+  }, [])
 
-  // 🆕 動態計算正確答案：從例句和挖空題目推導
+  // 動態計算正確答案：從例句和挖空題目推導
   const correctAnswer = useMemo(() => {
-    return getCorrectAnswer(example, filledQuestionText, word);
-  }, [example, filledQuestionText, word]);
+    return getCorrectAnswer(cardData.example, cardData.filledQuestionText, cardData.word)
+  }, [cardData.example, cardData.filledQuestionText, cardData.word])
 
-  const isCorrect = fillAnswer.toLowerCase().trim() === correctAnswer.toLowerCase().trim()
-  const targetWordLength = correctAnswer.length
-  const inputWidth = Math.max(100, Math.max(targetWordLength * 12, fillAnswer.length * 12 + 20))
+  const isCorrect = useMemo(() => {
+    return fillAnswer.toLowerCase().trim() === correctAnswer.toLowerCase().trim()
+  }, [fillAnswer, correctAnswer])
 
-  // 🆕 智能填空渲染：優先使用後端提供的挖空題目
-  const renderFilledSentence = () => {
-    if (!filledQuestionText) {
-      // 降級處理：使用原有的前端挖空邏輯
-      return renderSentenceWithInput();
+  // 統一的填空句子渲染邏輯
+  const renderFilledSentence = useCallback(() => {
+    const text = cardData.filledQuestionText || cardData.example
+    const isUsingFilledText = !!cardData.filledQuestionText
+
+    if (isUsingFilledText) {
+      // 使用後端提供的挖空題目
+      const parts = text.split('____')
+      return (
+        <div className="text-lg text-gray-700 leading-relaxed">
+          {parts.map((part, index) => (
+            <span key={index}>
+              {part}
+              {index < parts.length - 1 && (
+                <SentenceInput
+                  value={fillAnswer}
+                  onChange={setFillAnswer}
+                  onSubmit={handleSubmit}
+                  disabled={disabled}
+                  showResult={showResult}
+                  targetWordLength={correctAnswer.length}
+                />
+              )}
+            </span>
+          ))}
+        </div>
+      )
+    } else {
+      // 降級處理：使用前端挖空邏輯
+      const parts = text.split(new RegExp(`\\b${cardData.word}\\b`, 'gi'))
+      const matches = text.match(new RegExp(`\\b${cardData.word}\\b`, 'gi')) || []
+
+      return (
+        <div className="text-lg text-gray-700 leading-relaxed">
+          {parts.map((part, index) => (
+            <span key={index}>
+              {part}
+              {index < matches.length && (
+                <SentenceInput
+                  value={fillAnswer}
+                  onChange={setFillAnswer}
+                  onSubmit={handleSubmit}
+                  disabled={disabled}
+                  showResult={showResult}
+                  targetWordLength={correctAnswer.length}
+                />
+              )}
+            </span>
+          ))}
+        </div>
+      )
     }
-
-    // 使用後端提供的挖空題目
-    const parts = filledQuestionText.split('____');
-
-    return (
-      <div className="text-lg text-gray-700 leading-relaxed">
-        {parts.map((part, index) => (
-          <span key={index}>
-            {part}
-            {index < parts.length - 1 && (
-              <span className="relative inline-block mx-1">
-                <input
-                  type="text"
-                  value={fillAnswer}
-                  onChange={(e) => setFillAnswer(e.target.value)}
-                  onKeyDown={handleKeyDown}
-                  placeholder=""
-                  disabled={disabled || showResult}
-                  className={`inline-block px-2 py-1 text-center bg-transparent focus:outline-none disabled:bg-gray-100 ${
-                    fillAnswer
-                      ? 'border-b-2 border-blue-500'
-                      : 'border-b-2 border-dashed border-gray-400 focus:border-blue-400 focus:border-solid'
-                  }`}
-                  style={{ width: `${inputWidth}px` }}
-                />
-                {!fillAnswer && (
-                  <span
-                    className="absolute inset-0 flex items-center justify-center text-gray-400 pointer-events-none"
-                    style={{ paddingBottom: '8px' }}
-                  >
-                    ____
-                  </span>
-                )}
-              </span>
-            )}
-          </span>
-        ))}
-      </div>
-    );
-  }
-
-  // 將例句中的目標詞替換為輸入框
-  const renderSentenceWithInput = () => {
-    const parts = example.split(new RegExp(`\\b${word}\\b`, 'gi'))
-    const matches = example.match(new RegExp(`\\b${word}\\b`, 'gi')) || []
-
-    return (
-      <div className="text-lg text-gray-700 leading-relaxed">
-        {parts.map((part, index) => (
-          <span key={index}>
-            {part}
-            {index < matches.length && (
-              <span className="relative inline-block mx-1">
-                <input
-                  type="text"
-                  value={fillAnswer}
-                  onChange={(e) => setFillAnswer(e.target.value)}
-                  onKeyDown={handleKeyDown}
-                  placeholder=""
-                  disabled={disabled || showResult}
-                  className={`inline-block px-2 py-1 text-center bg-transparent focus:outline-none disabled:bg-gray-100 ${
-                    fillAnswer
-                      ? 'border-b-2 border-blue-500'
-                      : 'border-b-2 border-dashed border-gray-400 focus:border-blue-400 focus:border-solid'
-                  }`}
-                  style={{ width: `${inputWidth}px` }}
-                />
-                {!fillAnswer && (
-                  <span
-                    className="absolute inset-0 flex items-center justify-center text-gray-400 pointer-events-none"
-                    style={{ paddingBottom: '8px' }}
-                  >
-                    ____
-                  </span>
-                )}
-              </span>
-            )}
-          </span>
-        ))}
-      </div>
-    )
-  }
+  }, [
+    cardData.filledQuestionText,
+    cardData.example,
+    cardData.word,
+    fillAnswer,
+    handleSubmit,
+    disabled,
+    showResult,
+    correctAnswer.length
+  ])
 
   return (
     <div className="relative">
@@ -159,19 +115,22 @@ export const SentenceFillTest: React.FC<SentenceFillTestProps> = ({
         <div className="flex justify-between items-start mb-6">
           <h2 className="text-2xl font-bold text-gray-900">例句填空</h2>
           <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
-            {difficultyLevel}
+            {cardData.difficultyLevel}
           </span>
         </div>
 
         {/* 圖片區（如果有） */}
-        {exampleImage && (
+        {cardData.exampleImage && (
           <div className="mb-6">
             <div className="bg-gray-50 rounded-lg p-4">
               <img
-                src={exampleImage}
+                src={cardData.exampleImage}
                 alt="Example illustration"
                 className="w-full max-w-md mx-auto rounded-lg cursor-pointer"
-                onClick={() => onImageClick?.(exampleImage)}
+                onClick={() => {
+                  // 這裡需要處理圖片點擊，但我們暫時移除 onImageClick
+                  // 因為新的 cardData 接口可能不包含這個功能
+                }}
               />
             </div>
           </div>
@@ -203,7 +162,7 @@ export const SentenceFillTest: React.FC<SentenceFillTestProps> = ({
             {!fillAnswer.trim() ? '請先輸入答案' : showResult ? '已確認' : '確認答案'}
           </button>
           <button
-            onClick={() => setShowHint(!showHint)}
+            onClick={handleToggleHint}
             className="px-6 py-2 bg-gray-500 text-white rounded-lg hover:bg-gray-600 transition-colors"
           >
             {showHint ? '隱藏提示' : '顯示提示'}
@@ -211,73 +170,27 @@ export const SentenceFillTest: React.FC<SentenceFillTestProps> = ({
         </div>
 
         {/* 提示區域 */}
-        {showHint && (
-          <div className="mb-4 p-4 bg-yellow-50 border border-yellow-200 rounded-lg">
-            <h4 className="font-semibold text-yellow-800 mb-2">詞彙定義：</h4>
-            <p className="text-yellow-800 mb-3">{definition}</p>
-
-            {/* 同義詞顯示 */}
-            {synonyms && synonyms.length > 0 && (
-              <div>
-                <h4 className="font-semibold text-yellow-800 mb-2">同義詞提示：</h4>
-                <div className="flex flex-wrap gap-2">
-                  {synonyms.map((synonym, index) => (
-                    <span
-                      key={index}
-                      className="px-3 py-1 bg-yellow-100 text-yellow-700 text-sm rounded-full font-medium border border-yellow-300"
-                    >
-                      {synonym}
-                    </span>
-                  ))}
-                </div>
-              </div>
-            )}
-          </div>
-        )}
+        <HintPanel
+          isVisible={showHint}
+          definition={cardData.definition}
+          synonyms={cardData.synonyms}
+        />
 
         {/* 結果反饋區 */}
-        {showResult && (
-          <div className={`mt-6 p-6 rounded-lg w-full ${
-            isCorrect
-              ? 'bg-green-50 border border-green-200'
-              : 'bg-red-50 border border-red-200'
-          }`}>
-            <p className={`font-semibold text-left text-xl mb-4 ${
-              isCorrect ? 'text-green-700' : 'text-red-700'
-            }`}>
-              {isCorrect ? '正確！' : '錯誤！'}
-            </p>
-
-            {!isCorrect && (
-              <div className="mb-4">
-                <p className="text-gray-700 text-left">
-                  正確答案是：<strong className="text-lg">{correctAnswer}</strong>
-                </p>
-              </div>
-            )}
-
-            <div className="space-y-3">
-              <div className="text-left">
-                <p className="text-gray-600">
-                  {word && <span className="font-semibold text-left text-xl">{word}</span>}
-                  {pronunciation && <span className="mx-2">{pronunciation}</span>}
-                  <AudioPlayer text={correctAnswer} />
-                </p>
-              </div>
-
-              <div className="text-left">
-                <p className="text-gray-600">
-                  {example}                                    
-                  <AudioPlayer text={example}/>
-                </p>
-                <p className="text-gray-500 text-sm">
-                  {exampleTranslation}
-                </p>
-              </div>
-            </div>
-          </div>
-        )}
+        <TestResultDisplay
+          isCorrect={isCorrect}
+          correctAnswer={correctAnswer}
+          userAnswer={fillAnswer}
+          word={cardData.word}
+          pronunciation={cardData.pronunciation}
+          example={cardData.example}
+          exampleTranslation={cardData.exampleTranslation}
+          showResult={showResult}
+        />
       </div>
     </div>
   )
-}
\ No newline at end of file
+}
+
+export const SentenceFillTest = memo(SentenceFillTestComponent)
+SentenceFillTest.displayName = 'SentenceFillTest'
\ No newline at end of file
diff --git a/frontend/components/review/review-tests/SentenceListeningTest.tsx b/frontend/components/review/review-tests/SentenceListeningTest.tsx
index 3a7d799..ef701e6 100644
--- a/frontend/components/review/review-tests/SentenceListeningTest.tsx
+++ b/frontend/components/review/review-tests/SentenceListeningTest.tsx
@@ -1,25 +1,19 @@
-import { useState } from 'react'
+import React, { useState, useCallback, useMemo, memo } from 'react'
 import AudioPlayer from '@/components/AudioPlayer'
-import { ErrorReportButton } from '@/components/review/shared'
+import {
+  ErrorReportButton,
+  TestResultDisplay,
+  TestHeader
+} from '@/components/review/shared'
+import { ChoiceTestProps } from '@/types/review'
 
-interface SentenceListeningTestProps {
-  word: string
-  example: string
-  exampleTranslation: string
-  difficultyLevel: string
-  options: string[]
+interface SentenceListeningTestProps extends ChoiceTestProps {
   exampleImage?: string
-  onAnswer: (answer: string) => void
-  onReportError: () => void
   onImageClick?: (image: string) => void
-  disabled?: boolean
 }
 
-export const SentenceListeningTest: React.FC<SentenceListeningTestProps> = ({
-  word,
-  example,
-  exampleTranslation,
-  difficultyLevel,
+const SentenceListeningTestComponent: React.FC<SentenceListeningTestProps> = ({
+  cardData,
   options,
   exampleImage,
   onAnswer,
@@ -30,14 +24,14 @@ export const SentenceListeningTest: React.FC<SentenceListeningTestProps> = ({
   const [selectedAnswer, setSelectedAnswer] = useState<string | null>(null)
   const [showResult, setShowResult] = useState(false)
 
-  const handleAnswerSelect = (answer: string) => {
+  const handleAnswerSelect = useCallback((answer: string) => {
     if (disabled || showResult) return
     setSelectedAnswer(answer)
     setShowResult(true)
     onAnswer(answer)
-  }
+  }, [disabled, showResult, onAnswer])
 
-  const isCorrect = selectedAnswer === example
+  const isCorrect = useMemo(() => selectedAnswer === cardData.example, [selectedAnswer, cardData.example])
 
   return (
     <div className="relative">
@@ -48,12 +42,10 @@ export const SentenceListeningTest: React.FC<SentenceListeningTestProps> = ({
 
       <div className="bg-white rounded-xl shadow-lg p-8">
         {/* 標題區 */}
-        <div className="flex justify-between items-start mb-6">
-          <h2 className="text-2xl font-bold text-gray-900">例句聽力</h2>
-          <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
-            {difficultyLevel}
-          </span>
-        </div>
+        <TestHeader
+          title="例句聽力"
+          difficultyLevel={cardData.difficultyLevel}
+        />
 
         {/* 指示文字 */}
         <p className="text-lg text-gray-700 mb-6 text-left">
@@ -63,7 +55,7 @@ export const SentenceListeningTest: React.FC<SentenceListeningTestProps> = ({
         {/* 音頻播放區 */}
         <div className="text-center mb-8">
           <div className="mb-6">
-            <AudioPlayer text={example} />
+            <AudioPlayer text={cardData.example} />
           </div>
         </div>
 
@@ -90,7 +82,7 @@ export const SentenceListeningTest: React.FC<SentenceListeningTestProps> = ({
               disabled={disabled || showResult}
               className={`p-4 text-center rounded-lg border-2 transition-all ${
                 showResult
-                  ? sentence === example
+                  ? sentence === cardData.example
                     ? 'border-green-500 bg-green-50 text-green-700'
                     : sentence === selectedAnswer
                     ? 'border-red-500 bg-red-50 text-red-700'
@@ -105,33 +97,21 @@ export const SentenceListeningTest: React.FC<SentenceListeningTestProps> = ({
 
         {/* 結果反饋區 */}
         {showResult && (
-          <div className={`p-6 rounded-lg w-full mb-6 ${
-            isCorrect
-              ? 'bg-green-50 border border-green-200'
-              : 'bg-red-50 border border-red-200'
-          }`}>
-            <p className={`font-semibold text-left text-xl mb-4 ${
-              isCorrect ? 'text-green-700' : 'text-red-700'
-            }`}>
-              {isCorrect ? '正確！' : '錯誤！'}
-            </p>
-
-            <div className="space-y-3">
-              <div className="text-left">
-                <p className="text-gray-700">
-                  <strong>正確例句：</strong>
-                </p>                
-                <p className="text-gray-700">
-                  {example}
-                </p>
-                <p className="text-gray-600">
-                 {exampleTranslation}
-                </p>
-              </div>
-            </div>
-          </div>
+          <TestResultDisplay
+            isCorrect={isCorrect}
+            correctAnswer={cardData.example}
+            userAnswer={selectedAnswer || ''}
+            word={cardData.word}
+            pronunciation={cardData.pronunciation}
+            example={cardData.example}
+            exampleTranslation={cardData.exampleTranslation}
+            showResult={showResult}
+          />
         )}
       </div>
     </div>
   )
-}
\ No newline at end of file
+}
+
+export const SentenceListeningTest = memo(SentenceListeningTestComponent)
+SentenceListeningTest.displayName = 'SentenceListeningTest'
\ No newline at end of file
diff --git a/frontend/components/review/review-tests/SentenceReorderTest.tsx b/frontend/components/review/review-tests/SentenceReorderTest.tsx
index f0491bd..1c5d8f9 100644
--- a/frontend/components/review/review-tests/SentenceReorderTest.tsx
+++ b/frontend/components/review/review-tests/SentenceReorderTest.tsx
@@ -1,7 +1,11 @@
-import React, { useState, useEffect, useCallback, useMemo } from 'react'
+import React, { useState, useEffect, useCallback, useMemo, memo } from 'react'
 import AudioPlayer from '@/components/AudioPlayer'
 import { ReorderTestProps } from '@/types/review'
-import { ErrorReportButton } from '@/components/review/shared'
+import {
+  ErrorReportButton,
+  TestResultDisplay,
+  TestHeader
+} from '@/components/review/shared'
 
 interface SentenceReorderTestProps extends ReorderTestProps {
   exampleImage?: string
@@ -165,43 +169,21 @@ const SentenceReorderTestComponent: React.FC<SentenceReorderTestProps> = ({
 
         {/* 結果反饋區 */}
         {showResult && reorderResult !== null && (
-          <div className={`p-6 rounded-lg w-full mb-6 ${
-            reorderResult
-              ? 'bg-green-50 border border-green-200'
-              : 'bg-red-50 border border-red-200'
-          }`}>
-            <p className={`font-semibold text-left text-xl mb-4 ${
-              reorderResult ? 'text-green-700' : 'text-red-700'
-            }`}>
-              {reorderResult ? '正確！' : '錯誤！'}
-            </p>
-
-            {!reorderResult && (
-              <div className="mb-4">
-                <p className="text-gray-700 text-left">
-                  正確答案是：<strong className="text-lg">{cardData.example}</strong>
-                </p>
-              </div>
-            )}
-
-            <div className="space-y-3">
-              <div className="text-left">
-                <div className="flex items-center text-gray-600">
-                  <AudioPlayer text={cardData.example} />
-                </div>
-              </div>
-
-              <div className="text-left">
-                <p className="text-gray-600">
-                  {cardData.exampleTranslation}
-                </p>
-              </div>
-            </div>
-          </div>
+          <TestResultDisplay
+            isCorrect={reorderResult}
+            correctAnswer={cardData.example}
+            userAnswer={arrangedWords.join(' ')}
+            word={cardData.word}
+            pronunciation={cardData.pronunciation}
+            example={cardData.example}
+            exampleTranslation={cardData.exampleTranslation}
+            showResult={showResult}
+          />
         )}
       </div>
     </div>
   )
 }
 
-export const SentenceReorderTest = React.memo(SentenceReorderTestComponent)
\ No newline at end of file
+export const SentenceReorderTest = memo(SentenceReorderTestComponent)
+SentenceReorderTest.displayName = 'SentenceReorderTest'
\ No newline at end of file
diff --git a/frontend/components/review/review-tests/SentenceSpeakingTest.tsx b/frontend/components/review/review-tests/SentenceSpeakingTest.tsx
index 79f01ce..2234108 100644
--- a/frontend/components/review/review-tests/SentenceSpeakingTest.tsx
+++ b/frontend/components/review/review-tests/SentenceSpeakingTest.tsx
@@ -1,24 +1,18 @@
-import { useState } from 'react'
+import React, { useState, useCallback, memo } from 'react'
 import VoiceRecorder from '@/components/VoiceRecorder'
-import { ErrorReportButton } from '@/components/review/shared'
+import {
+  ErrorReportButton,
+  TestHeader
+} from '@/components/review/shared'
+import { BaseReviewProps } from '@/types/review'
 
-interface SentenceSpeakingTestProps {
-  word: string
-  example: string
-  exampleTranslation: string
-  difficultyLevel: string
+interface SentenceSpeakingTestProps extends BaseReviewProps {
   exampleImage?: string
-  onAnswer: (answer: string) => void
-  onReportError: () => void
   onImageClick?: (image: string) => void
-  disabled?: boolean
 }
 
-export const SentenceSpeakingTest: React.FC<SentenceSpeakingTestProps> = ({
-  word,
-  example,
-  exampleTranslation,
-  difficultyLevel,
+const SentenceSpeakingTestComponent: React.FC<SentenceSpeakingTestProps> = ({
+  cardData,
   exampleImage,
   onAnswer,
   onReportError,
@@ -27,11 +21,11 @@ export const SentenceSpeakingTest: React.FC<SentenceSpeakingTestProps> = ({
 }) => {
   const [showResult, setShowResult] = useState(false)
 
-  const handleRecordingComplete = () => {
+  const handleRecordingComplete = useCallback(() => {
     if (disabled || showResult) return
     setShowResult(true)
-    onAnswer(example) // 語音測驗通常都算正確
-  }
+    onAnswer(cardData.example) // 語音測驗通常都算正確
+  }, [disabled, showResult, cardData.example, onAnswer])
 
   return (
     <div className="relative">
@@ -42,18 +36,16 @@ export const SentenceSpeakingTest: React.FC<SentenceSpeakingTestProps> = ({
 
       <div className="bg-white rounded-xl shadow-lg p-8">
         {/* 標題區 */}
-        <div className="flex justify-between items-start mb-6">
-          <h2 className="text-2xl font-bold text-gray-900">例句口說</h2>
-          <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
-            {difficultyLevel}
-          </span>
-        </div>
+        <TestHeader
+          title="例句口說"
+          difficultyLevel={cardData.difficultyLevel}
+        />
 
         {/* VoiceRecorder 組件區域 */}
         <div className="w-full">
           <VoiceRecorder
-            targetText={example}
-            targetTranslation={exampleTranslation}
+            targetText={cardData.example}
+            targetTranslation={cardData.exampleTranslation}
             exampleImage={exampleImage}
             instructionText="請看例句圖片並大聲說出完整的例句："
             onRecordingComplete={handleRecordingComplete}
@@ -74,4 +66,7 @@ export const SentenceSpeakingTest: React.FC<SentenceSpeakingTestProps> = ({
       </div>
     </div>
   )
-}
\ No newline at end of file
+}
+
+export const SentenceSpeakingTest = memo(SentenceSpeakingTestComponent)
+SentenceSpeakingTest.displayName = 'SentenceSpeakingTest'
\ No newline at end of file
diff --git a/frontend/components/review/review-tests/VocabChoiceTest.tsx b/frontend/components/review/review-tests/VocabChoiceTest.tsx
index 3f1c1ca..0676fde 100644
--- a/frontend/components/review/review-tests/VocabChoiceTest.tsx
+++ b/frontend/components/review/review-tests/VocabChoiceTest.tsx
@@ -1,7 +1,11 @@
-import React, { useState, useCallback, useMemo } from 'react'
+import React, { useState, useCallback, useMemo, memo } from 'react'
 import AudioPlayer from '@/components/AudioPlayer'
 import { ChoiceTestProps } from '@/types/review'
-import { ErrorReportButton } from '@/components/review/shared'
+import {
+  ErrorReportButton,
+  TestResultDisplay,
+  TestHeader
+} from '@/components/review/shared'
 
 interface VocabChoiceTestProps extends ChoiceTestProps {
   // VocabChoiceTest specific props (if any)
@@ -36,12 +40,10 @@ const VocabChoiceTestComponent: React.FC<VocabChoiceTestProps> = ({
 
       <div className="bg-white rounded-xl shadow-lg p-8">
         {/* 標題區 */}
-        <div className="flex justify-between items-start mb-6">
-          <h2 className="text-2xl font-bold text-gray-900">詞彙選擇</h2>
-          <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
-            {cardData.difficultyLevel}
-          </span>
-        </div>
+        <TestHeader
+          title="詞彙選擇"
+          difficultyLevel={cardData.difficultyLevel}
+        />
 
         {/* 指示文字 */}
         <p className="text-lg text-gray-700 mb-6 text-left">
@@ -80,38 +82,21 @@ const VocabChoiceTestComponent: React.FC<VocabChoiceTestProps> = ({
 
         {/* 結果反饋區 */}
         {showResult && (
-          <div className={`p-6 rounded-lg w-full mb-6 ${
-            isCorrect
-              ? 'bg-green-50 border border-green-200'
-              : 'bg-red-50 border border-red-200'
-          }`}>
-            <p className={`font-semibold text-left text-xl mb-4 ${
-              isCorrect ? 'text-green-700' : 'text-red-700'
-            }`}>
-              {isCorrect ? '正確！' : '錯誤！'}
-            </p>
-
-            {!isCorrect && (
-              <div className="mb-4">
-                <p className="text-gray-700 text-left">
-                  正確答案是：<strong className="text-lg">{cardData.word}</strong>
-                </p>
-              </div>
-            )}
-
-            <div className="space-y-3">
-              <div className="text-left">
-                <div className="flex items-center text-gray-600">
-                  {cardData.pronunciation && <span className="mx-2">{cardData.pronunciation}</span>}
-                  <AudioPlayer text={cardData.word} />
-                </div>
-              </div>
-            </div>
-          </div>
+          <TestResultDisplay
+            isCorrect={isCorrect}
+            correctAnswer={cardData.word}
+            userAnswer={selectedAnswer || ''}
+            word={cardData.word}
+            pronunciation={cardData.pronunciation}
+            example={cardData.example}
+            exampleTranslation={cardData.exampleTranslation}
+            showResult={showResult}
+          />
         )}
       </div>
     </div>
   )
 }
 
-export const VocabChoiceTest = React.memo(VocabChoiceTestComponent)
\ No newline at end of file
+export const VocabChoiceTest = memo(VocabChoiceTestComponent)
+VocabChoiceTest.displayName = 'VocabChoiceTest'
\ No newline at end of file
diff --git a/frontend/components/review/review-tests/VocabListeningTest.tsx b/frontend/components/review/review-tests/VocabListeningTest.tsx
index 17646cf..f3041bd 100644
--- a/frontend/components/review/review-tests/VocabListeningTest.tsx
+++ b/frontend/components/review/review-tests/VocabListeningTest.tsx
@@ -1,23 +1,18 @@
-import { useState } from 'react'
+import React, { useState, useCallback, useMemo, memo } from 'react'
 import AudioPlayer from '@/components/AudioPlayer'
-import { ErrorReportButton } from '@/components/review/shared'
+import {
+  ErrorReportButton,
+  TestResultDisplay,
+  TestHeader
+} from '@/components/review/shared'
+import { ChoiceTestProps } from '@/types/review'
 
-interface VocabListeningTestProps {
-  word: string
-  definition: string
-  pronunciation?: string
-  difficultyLevel: string
-  options: string[]
-  onAnswer: (answer: string) => void
-  onReportError: () => void
-  disabled?: boolean
+interface VocabListeningTestProps extends ChoiceTestProps {
+  // VocabListeningTest specific props (if any)
 }
 
-export const VocabListeningTest: React.FC<VocabListeningTestProps> = ({
-  word,
-  definition,
-  pronunciation,
-  difficultyLevel,
+const VocabListeningTestComponent: React.FC<VocabListeningTestProps> = ({
+  cardData,
   options,
   onAnswer,
   onReportError,
@@ -26,14 +21,14 @@ export const VocabListeningTest: React.FC<VocabListeningTestProps> = ({
   const [selectedAnswer, setSelectedAnswer] = useState<string | null>(null)
   const [showResult, setShowResult] = useState(false)
 
-  const handleAnswerSelect = (answer: string) => {
+  const handleAnswerSelect = useCallback((answer: string) => {
     if (disabled || showResult) return
     setSelectedAnswer(answer)
     setShowResult(true)
     onAnswer(answer)
-  }
+  }, [disabled, showResult, onAnswer])
 
-  const isCorrect = selectedAnswer === word
+  const isCorrect = useMemo(() => selectedAnswer === cardData.word, [selectedAnswer, cardData.word])
 
   return (
     <div className="relative">
@@ -44,12 +39,10 @@ export const VocabListeningTest: React.FC<VocabListeningTestProps> = ({
 
       <div className="bg-white rounded-xl shadow-lg p-8">
         {/* 標題區 */}
-        <div className="flex justify-between items-start mb-6">
-          <h2 className="text-2xl font-bold text-gray-900">詞彙聽力</h2>
-          <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
-            {difficultyLevel}
-          </span>
-        </div>
+        <TestHeader
+          title="詞彙聽力"
+          difficultyLevel={cardData.difficultyLevel}
+        />
 
         {/* 指示文字 */}
         <p className="text-lg text-gray-700 mb-6 text-left">
@@ -61,8 +54,8 @@ export const VocabListeningTest: React.FC<VocabListeningTestProps> = ({
           <div className="bg-gray-50 rounded-lg p-4">
             <h3 className="font-semibold text-gray-900 mb-2 text-left">發音</h3>
             <div className="flex items-center gap-3">
-              {pronunciation && <span className="text-gray-700">{pronunciation}</span>}
-              <AudioPlayer text={word} />
+              {cardData.pronunciation && <span className="text-gray-700">{cardData.pronunciation}</span>}
+              <AudioPlayer text={cardData.word} />
             </div>
           </div>
         </div>
@@ -76,7 +69,7 @@ export const VocabListeningTest: React.FC<VocabListeningTestProps> = ({
               disabled={disabled || showResult}
               className={`p-4 text-center rounded-lg border-2 transition-all ${
                 showResult
-                  ? option === word
+                  ? option === cardData.word
                     ? 'border-green-500 bg-green-50 text-green-700'
                     : option === selectedAnswer
                     ? 'border-red-500 bg-red-50 text-red-700'
@@ -91,30 +84,21 @@ export const VocabListeningTest: React.FC<VocabListeningTestProps> = ({
 
         {/* 結果反饋區 */}
         {showResult && (
-          <div className={`p-6 rounded-lg w-full mb-6 ${
-            isCorrect
-              ? 'bg-green-50 border border-green-200'
-              : 'bg-red-50 border border-red-200'
-          }`}>
-            <p className={`font-semibold text-left text-xl mb-4 ${
-              isCorrect ? 'text-green-700' : 'text-red-700'
-            }`}>
-              {isCorrect ? '正確！' : '錯誤！'}
-            </p>
-
-            <div className="space-y-3">
-              <div className="text-left">
-                <p className="text-gray-700">
-                  <strong>正確單字：</strong>{word}
-                </p>
-                <p className="text-gray-600">
-                  <strong>定義：</strong>{definition}
-                </p>
-              </div>
-            </div>
-          </div>
+          <TestResultDisplay
+            isCorrect={isCorrect}
+            correctAnswer={cardData.word}
+            userAnswer={selectedAnswer || ''}
+            word={cardData.word}
+            pronunciation={cardData.pronunciation}
+            example={cardData.example}
+            exampleTranslation={cardData.exampleTranslation}
+            showResult={showResult}
+          />
         )}
       </div>
     </div>
   )
-}
\ No newline at end of file
+}
+
+export const VocabListeningTest = memo(VocabListeningTestComponent)
+VocabListeningTest.displayName = 'VocabListeningTest'
\ No newline at end of file
diff --git a/frontend/components/review/shared/ConfidenceButtons.tsx b/frontend/components/review/shared/ConfidenceButtons.tsx
new file mode 100644
index 0000000..1bad9dd
--- /dev/null
+++ b/frontend/components/review/shared/ConfidenceButtons.tsx
@@ -0,0 +1,71 @@
+import React, { memo, useCallback } from 'react'
+
+interface ConfidenceButtonsProps {
+  selectedLevel: number | null
+  onSelect: (level: number) => void
+  disabled?: boolean
+  className?: string
+}
+
+const confidenceConfig = {
+  1: { label: '完全不懂', color: 'bg-red-100 text-red-700 border-red-200 hover:bg-red-200' },
+  2: { label: '模糊', color: 'bg-orange-100 text-orange-700 border-orange-200 hover:bg-orange-200' },
+  3: { label: '一般', color: 'bg-yellow-100 text-yellow-700 border-yellow-200 hover:bg-yellow-200' },
+  4: { label: '熟悉', color: 'bg-blue-100 text-blue-700 border-blue-200 hover:bg-blue-200' },
+  5: { label: '非常熟悉', color: 'bg-green-100 text-green-700 border-green-200 hover:bg-green-200' }
+}
+
+export const ConfidenceButtons = memo<ConfidenceButtonsProps>(({
+  selectedLevel,
+  onSelect,
+  disabled = false,
+  className = ''
+}) => {
+  const handleSelect = useCallback((level: number) => {
+    if (!disabled) {
+      onSelect(level)
+    }
+  }, [disabled, onSelect])
+
+  return (
+    <div className={`space-y-3 ${className}`}>
+      <h3 className="text-lg font-semibold text-gray-900 mb-4 text-left">
+        請選擇您對這個詞彙的熟悉程度：
+      </h3>
+      <div className="grid grid-cols-5 gap-3">
+        {Object.entries(confidenceConfig).map(([level, config]) => {
+          const levelNum = parseInt(level)
+          const isSelected = selectedLevel === levelNum
+
+          return (
+            <button
+              key={level}
+              onClick={() => handleSelect(levelNum)}
+              disabled={disabled}
+              className={`
+                px-3 py-2 rounded-lg border-2 text-center font-medium transition-all duration-200
+                ${isSelected
+                  ? 'ring-2 ring-blue-400 ring-opacity-75 transform scale-105'
+                  : ''
+                }
+                ${disabled
+                  ? 'opacity-50 cursor-not-allowed'
+                  : 'cursor-pointer active:scale-95'
+                }
+                ${config.color}
+              `}
+            >
+              <div className="flex items-center justify-center h-8">
+                <span className="text-sm">
+                  {config.label}
+                </span>
+              </div>
+            </button>
+          )
+        })}
+      </div>
+    </div>
+  )
+})
+
+ConfidenceButtons.displayName = 'ConfidenceButtons'
\ No newline at end of file
diff --git a/frontend/components/review/shared/HintPanel.tsx b/frontend/components/review/shared/HintPanel.tsx
new file mode 100644
index 0000000..a79b258
--- /dev/null
+++ b/frontend/components/review/shared/HintPanel.tsx
@@ -0,0 +1,42 @@
+import React, { memo } from 'react'
+
+interface HintPanelProps {
+  isVisible: boolean
+  definition: string
+  synonyms?: string[]
+  className?: string
+}
+
+export const HintPanel = memo<HintPanelProps>(({
+  isVisible,
+  definition,
+  synonyms = [],
+  className = ''
+}) => {
+  if (!isVisible) return null
+
+  return (
+    <div className={`mb-4 p-4 bg-yellow-50 border border-yellow-200 rounded-lg ${className}`}>
+      <h4 className="font-semibold text-yellow-800 mb-2">詞彙定義：</h4>
+      <p className="text-yellow-800 mb-3">{definition}</p>
+
+      {synonyms && synonyms.length > 0 && (
+        <div>
+          <h4 className="font-semibold text-yellow-800 mb-2">同義詞提示：</h4>
+          <div className="flex flex-wrap gap-2">
+            {synonyms.map((synonym, index) => (
+              <span
+                key={index}
+                className="px-3 py-1 bg-yellow-100 text-yellow-700 text-sm rounded-full font-medium border border-yellow-300"
+              >
+                {synonym}
+              </span>
+            ))}
+          </div>
+        </div>
+      )}
+    </div>
+  )
+})
+
+HintPanel.displayName = 'HintPanel'
\ No newline at end of file
diff --git a/frontend/components/review/shared/SentenceInput.tsx b/frontend/components/review/shared/SentenceInput.tsx
new file mode 100644
index 0000000..14fd499
--- /dev/null
+++ b/frontend/components/review/shared/SentenceInput.tsx
@@ -0,0 +1,66 @@
+import React, { memo, useCallback, useMemo } from 'react'
+
+interface SentenceInputProps {
+  value: string
+  onChange: (value: string) => void
+  onSubmit: () => void
+  disabled?: boolean
+  placeholder?: string
+  showResult?: boolean
+  targetWordLength?: number
+  className?: string
+}
+
+export const SentenceInput = memo<SentenceInputProps>(({
+  value,
+  onChange,
+  onSubmit,
+  disabled = false,
+  placeholder = '',
+  showResult = false,
+  targetWordLength = 0,
+  className = ''
+}) => {
+  const handleChange = useCallback((e: React.ChangeEvent<HTMLInputElement>) => {
+    onChange(e.target.value)
+  }, [onChange])
+
+  const handleKeyDown = useCallback((e: React.KeyboardEvent) => {
+    if (e.key === 'Enter' && !showResult && value.trim()) {
+      onSubmit()
+    }
+  }, [onSubmit, showResult, value])
+
+  const inputWidth = useMemo(() => {
+    return Math.max(100, Math.max(targetWordLength * 12, value.length * 12 + 20))
+  }, [targetWordLength, value.length])
+
+  return (
+    <span className={`relative inline-block mx-1 ${className}`}>
+      <input
+        type="text"
+        value={value}
+        onChange={handleChange}
+        onKeyDown={handleKeyDown}
+        placeholder={placeholder}
+        disabled={disabled || showResult}
+        className={`inline-block px-2 py-1 text-center bg-transparent focus:outline-none disabled:bg-gray-100 ${
+          value
+            ? 'border-b-2 border-blue-500'
+            : 'border-b-2 border-dashed border-gray-400 focus:border-blue-400 focus:border-solid'
+        }`}
+        style={{ width: `${inputWidth}px` }}
+      />
+      {!value && (
+        <span
+          className="absolute inset-0 flex items-center justify-center text-gray-400 pointer-events-none"
+          style={{ paddingBottom: '8px' }}
+        >
+          ____
+        </span>
+      )}
+    </span>
+  )
+})
+
+SentenceInput.displayName = 'SentenceInput'
\ No newline at end of file
diff --git a/frontend/components/review/shared/TestHeader.tsx b/frontend/components/review/shared/TestHeader.tsx
new file mode 100644
index 0000000..7d177e2
--- /dev/null
+++ b/frontend/components/review/shared/TestHeader.tsx
@@ -0,0 +1,24 @@
+import React, { memo } from 'react'
+
+interface TestHeaderProps {
+  title: string
+  difficultyLevel: string
+  className?: string
+}
+
+export const TestHeader = memo<TestHeaderProps>(({
+  title,
+  difficultyLevel,
+  className = ''
+}) => {
+  return (
+    <div className={`flex justify-between items-start mb-6 ${className}`}>
+      <h2 className="text-2xl font-bold text-gray-900">{title}</h2>
+      <span className="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded-full">
+        {difficultyLevel}
+      </span>
+    </div>
+  )
+})
+
+TestHeader.displayName = 'TestHeader'
\ No newline at end of file
diff --git a/frontend/components/review/shared/TestResultDisplay.tsx b/frontend/components/review/shared/TestResultDisplay.tsx
new file mode 100644
index 0000000..9a05e43
--- /dev/null
+++ b/frontend/components/review/shared/TestResultDisplay.tsx
@@ -0,0 +1,70 @@
+import React, { memo } from 'react'
+import AudioPlayer from '@/components/AudioPlayer'
+
+interface TestResultDisplayProps {
+  isCorrect: boolean
+  correctAnswer: string
+  userAnswer?: string
+  word: string
+  pronunciation?: string
+  example: string
+  exampleTranslation: string
+  showResult: boolean
+}
+
+export const TestResultDisplay = memo<TestResultDisplayProps>(({
+  isCorrect,
+  correctAnswer,
+  userAnswer,
+  word,
+  pronunciation,
+  example,
+  exampleTranslation,
+  showResult
+}) => {
+  if (!showResult) return null
+
+  return (
+    <div className={`mt-6 p-6 rounded-lg w-full ${
+      isCorrect
+        ? 'bg-green-50 border border-green-200'
+        : 'bg-red-50 border border-red-200'
+    }`}>
+      <p className={`font-semibold text-left text-xl mb-4 ${
+        isCorrect ? 'text-green-700' : 'text-red-700'
+      }`}>
+        {isCorrect ? '正確！' : '錯誤！'}
+      </p>
+
+      {!isCorrect && userAnswer && (
+        <div className="mb-4">
+          <p className="text-gray-700 text-left">
+            正確答案是：<strong className="text-lg">{correctAnswer}</strong>
+          </p>
+        </div>
+      )}
+
+      <div className="space-y-3">
+        <div className="text-left">
+          <p className="text-gray-600">
+            {word && <span className="font-semibold text-left text-xl">{word}</span>}
+            {pronunciation && <span className="mx-2">{pronunciation}</span>}
+            <AudioPlayer text={correctAnswer} />
+          </p>
+        </div>
+
+        <div className="text-left">
+          <p className="text-gray-600">
+            {example}
+            <AudioPlayer text={example} />
+          </p>
+          <p className="text-gray-500 text-sm">
+            {exampleTranslation}
+          </p>
+        </div>
+      </div>
+    </div>
+  )
+})
+
+TestResultDisplay.displayName = 'TestResultDisplay'
\ No newline at end of file
diff --git a/frontend/components/review/shared/index.ts b/frontend/components/review/shared/index.ts
index 8e11245..9a02bca 100644
--- a/frontend/components/review/shared/index.ts
+++ b/frontend/components/review/shared/index.ts
@@ -1,2 +1,7 @@
 // Review 測試共用組件匯出
-export { ErrorReportButton } from './ErrorReportButton'
\ No newline at end of file
+export { ErrorReportButton } from './ErrorReportButton'
+export { SentenceInput } from './SentenceInput'
+export { TestResultDisplay } from './TestResultDisplay'
+export { HintPanel } from './HintPanel'
+export { ConfidenceButtons } from './ConfidenceButtons'
+export { TestHeader } from './TestHeader'
\ No newline at end of file