Choose the best answer A, B, C or D

31. Those towns ________ you were looking at in Gaul are small.
A. who B. where C. which D. whom
32. In Helvetia I have seen a large city ________ many people live.
A. at which B. which C. on which D. in which
33. He ________ is not my friend is my enemy.
A. who B. which C. whom D. A&B
34. I sent my friend the books ________ I had written.
A. who B. which C. whom D. what
35. The man ________ spoke to John is my brother.
A. whom B. who C. whose D. which
36. I must thank the man from _____ I got the present.
A. who B. whom C. that D. which
37. It is a car ______ I bought last year.
A. whom B. who C. which D. whose
38. He is the man _______ son is a doctor
A. whom B. which C. who D. whose
39. I come from a city _______ is located in the southern part of the country.
A. who B. whom C. that D. whose
40. The film about _____ they are talking is fantastic.
A. who B. which C. whom D. that