Fill in each blank with a suitable relative pronoun and write comma(s) if necessary

I. Fill in each blank with a suitable relative pronoun and write comma(s) if necessary:
29. The picture at __________ she was looking was beautiful.
30. I’ll give you the address to __________ you should write.
31. The woman about __________ I’m telling you teaches me English.
32. He introduced me to his students most of __________ were from abroad.
33. Fred has three brothers all of __________ are married.
34. Ann has a lot of books most of __________ she hasn’t read.
35. Alexander Fleming __________ discovered penicillin received the Nobel Prize in 1945.
36. Those __________ are drunk should not drive.
37. This is the only thing __________ the thieves left in the house.
38. This is one of the most interesting books __________ he has ever written.
39. I have nothing __________ I can wear for the party.
40. The hotel __________ we stayed was very clean and comfortable.
41. The car __________ handbrake wasn’t very reliable began to slide backwards.
42. She has two sons both of __________ are working abroad.
43. This is the most interesting film __________ I’ve ever watched.
44. Stevenson is an architect __________ designs have won the international praise.
45. Mr. Ross __________ I have known for a long time has just become the principal.
46. My wife __________ mother is Italian knows Italy very well.
47. He traveled to the Far East __________ he got the ideas for many of his novels.
48. I’ll never forget the day __________ I first met her.
49. He is the only friend __________ I like.
50. Henry __________ you’ll met tomorrow is also a member of the board .
51. We are visiting Ha Long __________ is in the north of Viet Nam .
52. We visited children __________ parents are dead .
53. I’m talking about Tom __________ is really friendly.
54. She doesn’t have anything __________ she wants to tell you.
55. All the apples __________ you gave me yesterday were rotten.