【題目】While waiting for the flight, your father his colleagues, but I am not sure.

A. might have met B. should have met

C. must have met D. could have met

【答案】A

【解析】考查情態(tài)動詞。句意:在候機時,你的父親可能見到了他的同事,但我不確定。由句中的"I am not sure可知,此處表示對過去發(fā)生的事情沒有絕對把握的推測,故用might have done結構,表示"過去有可能發(fā)生……"。故選A。

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