◎ 题干
Not until I began to work ____ realize how much time I had wasted.
[     ]
A. didn't I 
B. did I 
C. I didn't 
D. I
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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 ____ realize how much time I had wasted. [ ]A. didn't IB. did I C. I didn'tD. I …”主要考查了你对  【部分倒装】  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。