时态填空When I came in they _____(do)some cooking.

时态填空When I came in they _____(do)some cooking. when后面的时态是不是只能是一般过去时,而不能用过去进行时.eg：When the students are singing,I came in.还是when I came in,the students were singing. I noticed that they came in just now.是什么时态? 为什么用sleeping而不用slept-Do you know when your father came back last night?-No,Idon't.When he came back,I (sleeping) in my bedroom. when the rain came,I took(protection or the state of being protected) in the填空单词 括号里的 英语,过去时态.用所给动词的适当形式填空.1、Linda___(leave)her key in the classroom so she came back for it.2、When the warthquake took place,I ___(watch) the evening news.3、--Did you see Tom when you arrived there?--Yes,but he___ 对括号部分提问 1.I am getting on (well) with it.2.They were (drawing a horse)when I came in.(对括号部分提问1.I am getting on (well) with it.2.They were (drawing a horse)when I came in.( ) ( ) they ( ) when I came in?3.I didn't go to sch When I came back ,she happened to watch(时态) TVWhen I came back ,she happened to watch(用什么时态) TV I stopping playing games when my mother came in. I came in when she was reading 为什么错了? She 什么 her dress when I came in.(make) The dog_________(lie) on the floor when I came in （the teacher came in when I was reading)是否正确 The blackboard ________ (clean) when I came in. ___________(be)you________(read)books when i came in What ____ you ____(do) when I came in? 首字母填空I am a_ I canot go with you.Are you s_ you donot mind?I will be b_ in five minute.There are enough s_ in the reading room.It's nice to see you a_.When the teacher came in,all the students stopped t_.I'll s_ the floor and you can lean t She was reading a novel when I came in.(改为否定句） She_______ ________a novel when I came in.----------------------