It is wise not to pretend to know___ you don't know.A.that B.what_英语解答

It is wise not to pretend to know___ you don't know.
A.that B.what
why?

人气：145 ℃　时间：2020-02-18 07:40:17

解答

B.what 引导宾语从句,作为know的宾语； that是引导定语从句的,所以不能选