20．The student pretendedto have memorized（memorize）the words，but in fact，he didn't．

分析 那個(gè)學(xué)生假裝記住了單詞，但實(shí)際上，他沒有．

解答 答案：to have memorized 考查單詞填空．pretend后接動(dòng)詞時(shí)，用動(dòng)詞不定式形式，且memorize發(fā)生在pretend之前，要用動(dòng)詞不定式的完成式．

點(diǎn)評(píng) 考查單詞填空，準(zhǔn)確地理解句意，翻譯句子，然后，根據(jù)句意，寫出正確的單詞．

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