过去进行时+when+过去时造句快,急用啊、、初二的
问题描述：
过去进行时+when+过去时造句
快,急用啊、、初二的
答
I was reading a book when my mother came back.
答
They were playing football when I saw them
答
We were talking when our teacher came into the classroom.
答
I was watching TV when my mother came in