---------I arrived at the airport the plane had taken off. A．after B．while C．when D．before 题目和参考答案——青夏教育精英家教网—

题目内容

---------I arrived at the airport the plane had taken off.

A．after

B．while

C．when

D．before

【答案】

【解析】本题主要考查连词辨析，after在...之后；before在...之前；while是一个时间段，主句中的动词或事情在子句中的动词或事情的进展过程中发生；when 是一个时间点或时间段，when用作连接词表示时间关系时，当（在）...的时候，根据题意在过去完成时中，用after，故选A

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