作业帮（ ）the teacher came in, they were talking and laughing. A.while B.when
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（ ）the teacher came in, they were talking and laughing. A.while B.when
（ ）the teacher came in, they were talking and laughing. A.while B.when
（ ）the teacher came in, they were talking and laughing. A.while B.when
你好.答案是B
合并下列句子,如果你会,你在这方面的问题就解决了：
He was getting off the bus. He fell and hurt himself
1 While he was getting off the bus,he fell and hurt himself
2 When he fell and hurt himself,he was getting off the bus
3 He was getting off the bus when he fell and hurt himself
4 He fell and hurt himself while he was getting off the bus.
5 As he got off the bus, he fell and hurt himself
6 He fell and hurt himself as he got off the bus.
简单易懂,没有长篇大论,不过你需要比较和记住.
B when 引导的从句动词可以使延续性和非延续性的。
when 引导的时间状语从句
when
when
助你学习进步
Keep ( ),the teacher came in ( ）（quiet)
When the teacher came in,we __（talk）
the teacher came into the classroom quiet
The teacher came into the classroom.He didn't take papers with him.(用介词改写）The teacher came into the classroom_______papers________his hand.
英语一道题目 Their teacher came back.They started the work.（保持句意基本不变）They ( ) start the work ( ) their teacher came back.
The children ---- ---- ----(交谈） each other when the teacher came in
when the teacher came in,we were reading.(用while改写句子）
（ ）the teacher came in, they were talking and laughing. A.while B.when
The students stopped______(talk)when the teacher came in.
When the teacher came in ,the students stopped ______(talk )
The teacher came into the classroom with a smile ? herface.
When the teacher came into the classroom,we stopped t________
The students------(stop)talking when the teacher came in
The children stopped (talk) -----------as the teacher came in
The students________(chat)until the teacher came in.
The students all stood up ____ the teacher came in.
是 in came the teacher 还是 in the teacher came如果是 in came the teacher 那么为什有 Out he rushed 而不是 Out rushed he?
the students stopped talking when the teacher came inthe students stopped talking when the teacher came in（改为同义句）the students ____ ____talking ____the teacher came inhe came back yesterday.i gave him the note at once.（改为复合句