I don't think he knows the answer.(改为同义句)

问题描述:

I don't think he knows the answer.(改为同义句)
I don't think he knows the answer.(改为同句)
—— —— ——,he doesn't know the answer.

I don't think he knows the answer.(改为同句)
(In my opinion,以我的观点),he doesn't know the answer.
句意:在我看来,他不知道答案.
in one's opinion相当于 sb think,某人认为怎么样.