12.I should phone the man whose car I borrowed yesterday.
13.I'm staying with a boy whose father works in a bank.
15.The man about whom I told you works in the hospital.
17.We are visiting the children whose paents died in the storm.
19.We met some people whose car had broken down.
24.The man to whom you were talking is a computer expert.
III.
1.B
2.B
3.C
4.D
5.B
6.B
7.C
8.B
9.D
10.C
11.C