when 和 while前面用过去式 后面用什么时态?

Question

如题所述

Answer 1

后面通常用过去进行时，但有时候也可用一般过去时。比如：When he was fifteen, he was a high school student. He left the city when he was still a teen.追问

什么时候用一般过去式呢？

追答

坦率地说， 没有任何规律。 如果你要强调，当XX的时候，XX人正在做谋事，就用进行时。当你在陈述XX的时候，XX人正处在某种状况，就用一般过去时。

Answer 2

认真阅读，你就懂了。
比如说：
He came. She was waiting. --------用when 和 while把它们合并起来。
1 He came WHILE she was waiting.
2 WHEN he came,she was waiting.
3 WHILE she was waiting, he came.
4 She was waiting WHEN he came.本回答被网友采纳