Onlythen__________thatshehadmadeamist
单项选择题 Only then __________that she had made a mistake.
A.she realized
B.did she realize
C.had she realized
D.she had realized
正确答案：B
答案解析:本题考查倒装句型。句意：只有到那个时候，她才意识到自己犯了个错误。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。
查看试题解析 进入题库练习
