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题目内容 (请给出正确答案)
单选题
She has no idea of what the book is about. She _____ have read it carefully.
A

mustn’t

B

can’t

C

shouldn’t

D

needn’t


参考答案

参考解析
解析:
句意:她不知道这本书讲的是什么,她肯定没有认真读。本题考查情态动词用法。can’t have done不可能做了某事。根据句意可知,B项正确。must have done肯定做了某事。shouldn’t have done本不应该做某事(但实际上做了)。needn’t have done本不需要做某事。
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