4. i don't know the girl ________ is wearing a long blue.
A. whom B. whose C which D. that
5. the police are asking the man ________ car has been stolen.
A. whom B. whose C. which D. that
6. spring is the time ________ many kinds of flowers blossom.
A. who B. where C. which D. when
7. she gives her children everything ________ they want.
A. that B. who C. whom D. which
8. he went to the sport club ________ he first met his wife at.
A. which B. who C. where D. whose
9. he will never forget the day ________ his mother died.
A. on which B. who C. where D. which
13. We can _______ pollution by recycling bottles and cans.
A. prohibit B. minimize C. mention D.litter