Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:
The professor told him (A) to write a short but it must becomprehensive (B) paper about (C) the experiment (D)
A. him
B. it must becomprehensive
C. about
D. experiment
Chọn B
“it must becomprehensive” -> “it must be a comprehensive (paper)” : thiếu mạo từ “a” cho danh từ “paper” ở phía sau