It is difficult for us to learn a lesson in life _____ we’ve actually had that lesson . A. until B. ...
2023-01-18 08:55:01 159次 2010-2011学年河南省长葛市高一上学期第一次月考英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
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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