—Do you know the man ______ is standing at the door?
—Yes, I do. He's a friend of_____.
A. when; I B. who; mine
C. that; me D. which; my
—Do you know the man ______ is standing at the door?
—Yes, I do. He's a friend of_____.
A. when; I B. who; mine
C. that; me D. which; my
【答案】B
【解析】考查定语从句引导词以及名词性物主代词的用法。定语从句的先行词the man是“人，在定语从句中充当的是主语，因此用关系代词who或that引导来引导，我的一个朋友，a friend of mine.故选B.