It is difficult for us to learn a lesson in life ________ we’ve actually had that lesson A. until B...
2023-02-16 21:44:13 23次 2010届高考英语二轮复习跟踪测试：介词连词专题 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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