The man____has gone to Japan.选哪个?为什么先行词不能用that?

题目

The man____has gone to Japan.选哪个?为什么先行词不能用that?
A whom I told you
B that I told you
C whom I told you about him
D I told you about
whom I told you 这句话中宾语为什么是whom 而不是you

答案

D 这是一个定语从句,先行词可以省略,先行词可以用that 也可以用whom.
正常的语序应该是,I told you about sb.whom 做介词about的宾语.you 是tell的宾语.