题目内容

—Whose book is this?
—It _____ be Mary’s. Mo Yan is her favorite author.
—No, it ____ be hers, she never brings novels to school.
A．may; mustn’tB．can; can’tC．must; can’tD．must; mustn’t
C

试题分析：句意:-这是谁的书？-它一定是Mary的，莫言是她最喜欢的作家。-不，不可能是她，她从来没有把小说带到学校来。本题考查情态动词表示推测的用法，在肯定句中表示有把握的推测用must;否定句中用can’t 表示不可能。must 不能用于否定句。故选C。
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用方框中所给单词的适当形式填空。每词限用一次。（5分）

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