Not until I began to work（）how much time I had wasted． -焚题库

Not until I began to w

单选题 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 realized

正确答案： B

答案解析: 在具有否定意义的词起始的句子中，主句中的主语和谓语要倒装。倒装时，助动词移至主语前面，实意动词仍在主语之后。

相关知识：第二章、语法与词汇

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