It's diffcult for us to learn a alesson in life_____ we're actual_英语解答

It's diffcult for us to learn a alesson in life_____ we're actually had that lesson
A.when B.after C.since D.until

人气：271 ℃　时间：2020-02-06 02:59:16

解答

选D
句子意思是“学习人生的一课对我们来说是很困难的,直到我们真正地经历过才明白.”