Question

There must have been something wrong with him， ？

A mustn't there B isn't there C was there D wasn't there
应该选择哪一个？
haven't there对吗。

Answer 1

haven't there.

对现在情况的推测，问句部分用主动词（do,be)一般现在时的适当形式。若是现在进行时，问句部分用现在进行时的适当形式表示。若是there be结构，问句用isn't/aren't there。如：
1)He must be there,isn't he?
2)He must have a big family,doesn't he?
3)He must be waiting outside,isn't he?
4)There must be some students in the room,aren't there?

追问

那么A B C D应该选择哪一个？

追答

不能选ABCD， 都是错的