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.  

Cách làm:
1. Đọc từng câu một và xác định từ hoặc cụm từ cần phải sửa đổi để câu trở nên đúng.
2. Tìm lỗi ngữ pháp hoặc cấu trúc ngữ pháp trong câu cần sửa.
3. Chọn từ hoặc cụm từ thay thế thích hợp để câu trở nên đúng.

Câu trả lời:
81. The (A)question wasn’t difficult, so (B)that many (C) students answered it correctly (D).
82. Camels, which (A) are 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 will 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. Most (A) people believe that marriage (B) and family life (C) are the basis (D) of society.

The most (A) people --> Most

Unless (A) we have more effective methods --> Unless

Camels, that are (A) --> Camels that

The (A) question --> The