VIII. Choose the one word or phrase marked A, B, c, or D that must be changed in order for the sentence to be correct.81. The (A) question wasn’t difficult, so that (B) many (C) students answered it correctly (D).82. Camels, that are (A) the most popular desert animals (B), can be found (C) in most (D) deserts.83. Unless (A) we have more effective methods, the deserts all over (B) the world would become (C) larger and larger (D).84. The disappearance (A) of one (B) or several species may result from (C) the loss (D) of biodiversity. 85. The most (A) people believe that marriage (B) and family life (C) are the basis (D) of society.  

VIII. Choose the one word or phrase marked A, B, c, or D that must be changed in order for the sentence to be correct.

81. The (A) question wasn’t difficult, so that (B) many (C) students answered it correctly (D).

82. Camels, that are (A) the most popular desert animals (B), can be found (C) in most (D) deserts.

83. Unless (A) we have more effective methods, the deserts all over (B) the world would become (C) ⇒ will become larger and larger (D).

84. The disappearance (A) of one (B) or several species may result from (C) ⇒ result in the loss (D) of biodiversity.

85. The most (A) people believe that marriage (B) and family life (C) are the basis (D) of society.

P/s: t chỉ sửa được từng đấy thôi ạ:( thông cảm:)