I don't think he must be sleepy, _______?I don’t think he must be_英语解答

I don't think he must be sleepy, _______?
I don’t think he must be sleepy, _______?
A. mustn’t he B. do I C. must he D. is he
为什么答案选择D,不应该是C么,速度.求讲解

人气：435 ℃　时间：2020-05-09 02:28:08

解答

must表示的是猜测的语气,而不是必须的意思.表示猜测的用助动词,表示必须才用must反问.