题目内容：

I don’t think he will be back in an hour, _____________?
选项:
a、do I
b、won’t he
c、don’t I
d、will he

优质解答

D
主句谓语是think, believe, expect, suppose, imagine等引导的定语从句,疑问部分与宾语从句相对应构成反意疑问句.
I don't think he is bright, is he?
We believe she can do it better, can't she?