It was after he went to college he realized the importance of forming a reading habit.A.

发布时间：2020-08-16 22:22:16

It was after he went to college      he realized the importance of forming a reading habit.
A. that
B. when
C. since
D. as

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(答案→)A. that
B. when
C. since
D. as
解析：本题考查强调句型。将It was和空格去掉后剩下的部分句意和结构依然完整，所以题干是个强调句型，故选A。
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