[题目]He have completed his work; otherwise, he wouldn't be enjoying himself by the seaside.A．should B．mustC．wouldn't D．can't 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】He________have completed his work; otherwise, he wouldn't be enjoying himself by the seaside.

A．should

B．must

C．wouldn't

D．can't

【答案】B

【解析】must have done是对过去事情的肯定推测“一定干了某事”。根据句子后部分可知他一定是干完了工作。

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