由否定前移想到的 关于反义疑问句

问题描述:

由否定前移想到的 关于反义疑问句
I think he is right.
He thinks Mike did it.
以上两句的反义疑问句怎么说呀?

I think he is right,isn't he?
He thinks Mike did it,didn't he?
以从句为准.