The man () has arrived.

问题描述:

The man () has arrived.
A.whom helped me
B.which helped me
C.who helped me
D.helped me

答案选C,是个定语从句修饰the man,整句意思是:那个帮我的人已经到了.A 不能选,因为当主语的是who 不是whom,B 不能选,因为which 指物不能指人,D 不能选,因为关系代词who 当主语,不能省略.ok?