问题 选择题

I failed in the final examination last term and only then _______ the importance of studies.

A.I realized

B.I had realized

C.had I realized

D.did I realize

答案

D

此题考查倒装结构。only+副词、介词短语、状语从句并和这些成分一起提前时,句子要用部分倒装;而且我的醒悟不会在考试以前,所以不能选C项。

单项选择题 案例分析题
单项选择题