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— Has Tim started? He said he would join in the party.
— He ____.He is a man of keeping his word.

A.could have left B.must have left
C.can’t come D.won’t be coming

B

解析试题分析:考查情态动词+完成式的用法:句意:Tim是个言出必行的人,所以他肯定会来参加聚会的,这里强调他一定离家往聚会地点来了,所以用must have left 语气非常肯定,could have done过去可能做了,却没做。选B。
考点:考查情态动词+have done的用法
点评:情态动词+have done可以表示推测和虚拟:“must+have+done”表示对过去事情的肯定推测,译成“一定做过某事”,该结构只用于肯定句。“can't+have+done”表示对过去事情的否定推测,译成“不可能做过某事”。 “may+have+done”表示对发生过的事情的推测,意思是“可能已经”或“也许已经”,用于肯定句中。 “could+have+done”是虚拟语气,表示对过去事情的假设,意思是本来能够做某事而没有做。 “would+have+done”虚拟语气,表示对过去事情的假设,意思是“本来会做”。

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