It is difficult for us to learn a lesson in life we’ve actually had that lesson. A. untilB

发布时间：2020-08-17 11:27:10

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

网友回答

(答案→)A. until
B. after
C. since
D. when
解析：由语境逻辑可知，人的一生难以吸取教训的状态一直延续到真正有了教训，因此该空应填until引导时间状语从句。
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