单选题
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试题题干

Only then( )that he was wrong. 

A

he realized

B

he had realized

C

had she realized

D

did he realize

参考答案

正确答案:

试题解析

本题考查部分倒装。以“only+状语或状语从句”开头的句子要用倒装结构,即把助动词放在主语前。then意为“那时”,表示过去,所以要用一般过去时。故选D。

句意:直到那时他才意识到他错了。