I don't think that they have finished their homework by now,

I don't think that they have finished their homework by now,_________?
A.haven't they B.have they C.don't we D.do we
选B 寻详解
能不能说下为什么不能选D啊？

77138138 1年前已收到2个回答举报

青州从事xwz 幼苗

共回答了18个问题采纳率：100% 举报

这个句子实际上是对they have not finished their homework by now
因为I think这样的句式后面从句的否定要放在前面,反问句时要移回去.所以对have not反问,就选B
是对they提问,不存在we的问题,所以不能选D

1年前

tmxk888 幼苗

共回答了38个问题举报

这句话是对从句反问，并不是对主句反问，所以从句的主语是“they”,助动词是"have"，所以后面变成反义疑问句就要把“have”变成否定形式。

1年前

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