They have already bought some T-shirts.(改为反义疑问句)

问题描述:

They have already bought some T-shirts.(改为反义疑问句)
They have already bought some T-shirts,__________ __________?
答案是haven't they,求原因!
1个回答 分类:英语 2014-10-05

问题解答:

我来补答
因为陈述部分是现在完成时,助动词是have,并且是肯定,所以,疑问部分用否定,主语是they,所以是haven't they
 
 
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