It is difficult for us to learn a lesson in lifewe’ve actually had that lesson.A. until B.

发布时间：2020-08-16 11:23:59


It is difficult for us to learn a lesson in life    we’ve actually had that lesson.
A. until
B. after
C. since
D. when

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(答案→)A. until
B. after
C. since
D. when
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