◎ 题干
Not until I began to work ______ how much time I had wasted. 
A.didn't I realize   B.did I realize  
C.I didn't realize D.I realize
◎ 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“ Not until I began to work ______ how much time I had wasted. A.didn't I realize B.did I realizeC.I didn't realizeD.I realize…”主要考查了你对  【全部倒装】【省略句】【一般疑问句】【感叹句】  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。