i am sure that.../ iam afraid that...反义疑问句有什么特别的吗

题目

i am sure that.../ iam afraid that...反义疑问句有什么特别的吗
就是和i am think that........

答案

有的,因为that引导的是同位语从句,
所以后面的反义疑问句是反意that后面的事实,
比如说
I'm sure that he's dead, isn't he?