高中英语问题

Question

It's the first time that he has been to Australia,____?
A.isn't he B.hasn't he C.isn't it D.hasn't it

我需要错的哪几项的原因，解释越全越好

Answer 1

选项A和D搭配错误。此处强调的是这是他第一次来到美国。故应把主句变成反义疑问句，所以应选择C。