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    精英家教网 > 高中英语 > 题目详情

    He______ his work, otherwise, he wouldn’t be enjoying himself by the seaside.

    A．must have completed B．should have completed
    C．ought to complete D．must complete

    A

    解析试题分析：句意：他一定是完成了他的工作，否则他不会在海边玩得那么开心。A. must have completed对过去的肯定推测；B. should have completed本应该完成，实际上没完成；C. ought to complete应该完成；D. must complete必须完成。表示对现在的推测。故选A。
    考点: 考查情态动词表推测的用法。

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