72. Cấu trúc This is the first time + S + have/has + Verb phân từ 2 -> HAVE USED

73. English is more difficult to speak than French.

74. The older he grows, the more intelligent he becomes.

75. This dictionary was first published in 1870.

76. Your interview didn't last as long as mine.

77. This work will be finished tomorrow.

78. We have worked here for three years.

79. She was bought a book by her mother yesterday.

80. A new school for disable is going to be built near my house.

81. The new president will be interviewed on TV.

82. Some of my book has been taken away.

83. Our teeth should be cleaned twice a day.

84. This form must be returned by applicants.

Chị ghi đáp án rồi giải thích trong bình luận nhé

81.