Question

i think he must be right的反义疑问句?

Answer 1

上述部分主句谓语是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?

所以

I think he must be right,isn't he?

(must be 在这里做情态动词,所以用is)