◎ 题干
_______he was laid off last year ______ how serious the economic crisis was.
A.Not until…he realized B. It was not until… when he realized
C.It is not until…that did he realizeD.It was not until …that he realized
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“ _______he was laid off last year ______ how serious the economic crisis was.A.Not until…he realized B. It was not until… when he realizedC.It is not until…that…”主要考查了你对  【therebe句型】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。