i _____my homework when my mother came back home.a,had done b,was doing 这里 ,如果把b改为 had finished 就是对的,

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i _____my homework when my mother came back home.a,had done b,was doing 这里 ,如果把b改为 had finished 就是对的,

i _____my homework when my mother came back home.a,had done b,was doing 这里 ,如果把b改为 had finished 就是对的,
i _____my homework when my mother came back home.
a,had done b,was doing
这里 ,如果把b改为 had finished 就是对的,

i _____my homework when my mother came back home.a,had done b,was doing 这里 ,如果把b改为 had finished 就是对的,
是的 你说的是对的

是的

a、b 两个都对！

其实从语法下来讲
A和B答案都是对的
只是时态不一样
A；过去完成时，表示在我母亲回来之前，我已经把作业做好了。
B；过去进行时，表示我母亲回来的时候，我正在做作业。

很少用过去进行时了。完成时倒是经常用，无论是过去完成时还是现在完成时。

I usually spend 3 hours doing my homework同义句 It usually_______me 3 hours_______ _____my homework The problem is that I spend so much time _____my homework that I cannot find any time ___my hobbies I'm_____ _____my key.I can't___them. i _____my homework when my mother came back home.a,had done b,was doing 这里 ,如果把b改为 had finished 就是对的, 我觉得在1小时内完成作业是很困难的用英语怎么说I found _____ hard _____ _____my homework I ( ) homework l usually f-_____my homework at home.填空,以f开头的. _____my homework ,l was not allowed to watch TV.为什么用not having finished My teacher _____my maths homework.(looked up looked at)请问选哪一个 为什么? 英语翻译I'm _____my dream will come ture one day. I came _____my house two days ago?填什么 Sorry,Mum.I forget _____my room this morning I am doing my homework W my brother is watching TVI am doing my homework W （ ）my brother is watching TV首字母填空 I usually do my homework and sometime help Mum (w ) housework. 同义句转换My sister is more outgoing than I I am _____ _____my sisterMy sister is more outgoing than I I am _____ _____my sister 1.I try ____ what the teacher said ,but it seems hard to remember all.(这道题A和C选哪一个啊?为什么?）A.to remember B.to forget C.not to forgrt D.not to remember2.I'm sorry I _____my homework at home.A.forget B.forgot C.leave D.left3.The 我通常每天用两个小时做作业.It usually ______ two hours ______ _____my homework everyday. It took me a lot of time _____my homework.A.finish B.to finish C.finishing D.finished