2. 自考
  3. With a modal verb: He _______ have completed his work; otherwise, he wouldn’t be enjoying himself by the seaside.

With a modal verb: He _______ have completed his work; otherwise, he wouldn’t be enjoying himself by the seaside.

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问题 With a modal verb:
He _______ have completed his work; otherwise, he wouldn’t be enjoying himself by the seaside.
选项
答案must
解析 must have done表示对过去的肯定推测，意为“肯定做过某事”，根据题干可知，句子所要表达的意思是“他肯定完成了工作，否则他不会在海边享乐”。答案为must。
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