定语从句do you know the young man (_) is standing over there?---Yes,he is my friend,Jimmy.
do you know the young man (_) is standing over there?---Yes,he is my friend,Jimmy.
A.that   B.which   C.whom   D.whose
2.Jack,there is someone in the office (_) would like to speak with you.
A .who   B.which    C.whom   D./
3.the book (_) he bought yesterday is very interesting.
A./   B.why   C.when   D.what   
4.Do you know the man (_) our teacher is talking to?
A.which   B./   C.when  D.whose