51. B

52. D

53. B

54. C

55. A

56. I wish I could remember the answers to these questions

57. Because the weather was so bad, we didn't go out

58. This hospital was built 20 years ago

59. Unless he works harder, he'll lose his job

60. Mary suggested going out for dinner

61. My father is the tallest in my family

62. It was such a heavy box that my son couldn't carry it

63. The planet which is the closest to the Eath is Venus

64. We haven't decorated this house for 2 years

65. If he weren't lazy, he wouldn't get bad marks

Tham khảo bài cuối nkaa 💁🏻‍♀️ (có 2 câu mik chưa làm đc)