-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

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。

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！

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.