问题
选择题
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 realize
答案
答案：B
B。 not until引导的状语置于句首时，主句用部分倒装。
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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：B
B。 not until引导的状语置于句首时，主句用部分倒装。