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    精英家教网 > 高中英语 > 题目详情

    He ______ have finished his work; otherwise, he wouldn’t be enjoying himself by the seaside.
    A．shouldB．mustC．needD．can
    B
    考查情态动词表推测的用法。句意“他一定已经完成作业了，不然，他他不可能正在海边玩。”should have done“本应该做某事”；must have done“一定已经做了某事”；can have done“可能已经做了某事”。本题表肯定的推测。故选B。
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