It's very difficult for us to learn a lesson in life__we've actually had t
问题描述:
It's very difficult for us to learn a lesson in life__we've actually had t
It's very difficult for us to learn a lesson in life____we've actually had that lesson
A.when B.after C.since D.until
答
D,对于我们来说很难接受生活中的教育,知道我们得到了那个教训.