题目内容
Not until he failed in the last examination _________ he should have spent more time on study.
A. did he realize B. he realized C. did he not realize D. he didn’t realize
【答案】
A
【解析】
试题分析：考查倒装句：句意：直到他在最后一次考试中失利，他才意识到他应该在学习上多花些时间。Not until引导时间状语从句置于句首，后面的主句用部分倒装，以前前面是not until，后面是肯定句，选A。
考点：考查倒装句
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