Do you know the man ---- is standing in front of our classroom?

问题描述:

Do you know the man ---- is standing in front of our classroom?
A.which
B.who
C.whose
D.what

答案:B
who
这里考察的是定语从句的用法,由于先行词是the man,是人,所以关系代词可以用who,也可以用that.