-They didn't give the concert after all last night. -___________________________.A．Did they? Why not? B．Did they? Why didn’t? C．Haven’t they? Why? D．Didn’t they? Why not?答案是D

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-They didn't give the concert after all last night. -___________________________.A．Did they? Why not? B．Did they? Why didn’t? C．Haven’t they? Why? D．Didn’t they? Why not?答案是D

-They didn't give the concert after all last night. -___________________________.A．Did they? Why not? B．Did they? Why didn’t? C．Haven’t they? Why? D．Didn’t they? Why not?答案是D
-They didn't give the concert after all last night. -___________________________.
A．Did they? Why not? B．Did they? Why
didn’t?
C．Haven’t they?
Why? D．Didn’t they? Why not?
答案是D 我选A 求解
Their loan applicantion____,they were't able to buy the house.
A.had been refused B.has been refused C.having been refused D.being refused
答案是C我选B

-They didn't give the concert after all last night. -___________________________.A．Did they? Why not? B．Did they? Why didn’t? C．Haven’t they? Why? D．Didn’t they? Why not?答案是D
They didn't发问,当然回答是Didn’t they
.
Why not也很显然了,因为都是否定的.
didn't对应why not
did 对应why
【欢迎追问,】
Their loan applicantion____,they were't able to buy the house.
A.had been refused B.has been refused C.having been refused D.being refused
答案应该是A!
weren't,表明过去时
只有A是过去式.

这不是你理解的祈使句，祈使句是一个人的讲话。这明显是第二人的问题！
Didn’t they? Why not?　直接翻译就通了啊！

A:--They didn't give the concert after all last night.
B:--Didn’t they? 是“Didn't they give the concert after all last night？”的省略句。
Why not 是“Why didn't they give the concert？”的省略句。

-They didn't give the concert after all last night. -___________________________.A．Did they? Why not? B．Did they? Why didn’t? C．Haven’t they? Why? D．Didn’t they? Why not?答案是D they didn't give the book back to the library 这句话正确吗 是face difficulty,we didn't give in还是facing difficulty,we didn't give in they didn't know how they could do it.同义句they didn't know --------- --------- -----------it. they were ( )because they didn 't havethey were ( )because they didn 't have lunch They didn't c _____ their mind. they didn't go swimming___(too) They both didn't do their best. nobody knew it ,didn't they.改错 but they didn't notice rt I didn't remember_______her the book before.(give) 连词成句: didn't give he me presents any you didn't give a damn about it They after running yesterday afternoon,didn't they?They 什么什么 after running yesterday afternoon，didn't they？ 同义句转换：Protecting animals is very important They didn't tell us where they would visitFebruary 18th is his birthdayI can look after the baby wellThe river is longer than any other one in the city they must have seen the film last week,didn't they?为什么要用didn't they呢?they must have seen the film last week,didn't they?为什么要用didn't they呢? (They must have been there yesterday ,______they?)能用weren't they 还是didn't they? i didn't remember (give) her the book before.（give）句子对不对?