宾语从句的反义疑问句 内个动词应该是跟主句还是应该跟从句变化？

Question

例题、

-I don't believe he can do this diffecult work，____?
A.do I B.can he C.don't I D.can't he

Answer 1

B.can he
这要分开来讲。
当主句的主语是第一人称时，简略问句的助动词要跟从句，否则跟主句。