I don't believe it./ I believe not.

问题描述:

I don't believe it./ I believe not.
-Do you suppose he is doing to attend the meeting?
-I ______ .
A.don't believe it B.believe not
为什么A不对呢?
打错了:-Do you suppose he is going to attend the meeting?

A意思是我不相信,B意思是我认为不是A的指代不明确到底是他要参加会议还是不要参加