1) cho tam giác ABC, AH đường cao, biết góc B= 45 độ , BH= 10cm, HC= 24cm. Tính tỉ số lượng giác của góc C

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43. Have you received the parcel _______ we sent you? A. it B. whose C. where D. which 44. That’s the girl _______ brother sits next to me. A. that B. whose C. where D. whom 45. The meal, _______ wasn’t very tasty, was expensive. A. that B. which C. where D. whose 46. We didn’t enjoy the play _______ we went to see. A. what B. whose C. where D. ф 47. She gives her children everything _______ they want. A. that B. whose C. where D. who 48. Tell me _______ you want and I’ll have you. A. the things that B. whose C. what D. A&C 49. The reason _______ I phoned him was to invite him to party. A. why B. ф C. A&B D. that 50. I don’t like people _______ never stops talking. A. that B. whose C. where D. whom 51. The day _______ they arrived was Sunday. A. when B. whose C. on which D. A&C 52. Ann, _______ children are at school all day is trying to get a job. A. that B. whose C. where D. who 53. We'd like to buy a house_______ overlooks West Lake. A. who B. whose C. where D. which 54. The woman _______ daughter Jack loves is very kind. A. whose B. who C. whom D. which 55. The letter _______ she received this morning is from the USA. A. who B. whose C. whom D. which 56. I don't know the girl _______ is wearing a long blue dress. A. whom B. whose C. which D. who 57. The police are asking the man _______ car has been stolen. A. whom B. whose C. which D. that 58. Spring is the time _______ many kinds of flowers blossom. A. who B. where C. which D. when 59. English is the subject _______ she is good at. A. what B. which C. where D. who 60. He went to the sport club _______ he first met his wife. A. which B. who C. where D. whose 61. He will never forget the day _______ his mother died. A. which B. who C. where D. when 62. The man _______ my sister loves is very intelligent. A. which B. whom C. whose D. when 63. Sunday is the day _______which we usually go fishing. A. during B. at C. in D. on 64. The music ______ we listened last night was boring. A. to which B. which to C. to that D. that 65. The man ______ I introduced you to last night is thoughtful. A. whom B. that C. Ø D. all are correct 66. She couldn’t answer any question, _______made me surprised. A. that B. it C. this D. which 67. It _____in Hanoi _____ I was born and grew up. A. is / that B. was / that C. was / which D. is / which 68. It____ Lan _____ always helps him in his trouble. A. was/ who B. was/ that C. is / who D. is / which 69. It was The World Cup _______in Korea and Japan. A. which was held B. that were held C. that was held D. that held