He _______ have completed his work；otherwise, he wouldn’t be enjoying himself by the seaside. .
He_______havecompletedhiswork；otherwise,hewouldn’tbeenjoyinghimselfbytheseaside.A．sho...
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?
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| B? |
| 此题考查情态动词must表推测的用法。must have done表示“对过去情况肯定的推测”，意为“一定发生了某事”。句意为“他一定完成了他的工作，否则他现在就不会在海边开心的玩了”。 |
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