在过去进行时中,以when引导的时间状语从句,主句与从句分别用什么时态?
问题描述：
在过去进行时中,以when引导的时间状语从句,主句与从句分别用什么时态?
答
都行，得看句子意思的。
He hurt his leg when he was playing football.
He was cooking in the kitchen when his son was doing his homework.
The boy was laughing when the teacher came in.
答
主句用过去进行时,从句（WHEN引导）用不般过去时.如
The students were talking when the teacher came in .
加油!不明白再问!