Question

do you know the man? yes

-do you know the man ____ is running alone the street?-yes,he is my friend
A who B which C whom D what 谁能和我说说应该怎么选择 为什么

Answer 1

选A.
因为the man是人,所以可以排除B和D.
the man是分句的主语,所以可以排除whom.whom只用于前面有介词的分句.