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单选题英语三级B级

2013-05-22

Only after I had reached the airport __________ that I had forgotten to take my ticket with me.

A．I realized

B．have I realized

C．did I realize

D．I had realized

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参考答案

C

答案解析

【译文】到机场后，我才发现忘记带飞机票了。
【考点】倒装结构
【解析】0nly+状语置于句首时，主句使用部分倒装结构，即将谓语部分的助动词置于主语之前。由从句中的过去完成时推知主句中应是一般过去时，故选C。

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