Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
These students have been studying very hard for his coming examination .
A. These
B. have been studying
C. his
D. coming
These students have been studying very hard for his coming examination .
A. These
B. have been studying
C. his
D. coming
his phải sửa thành their
Đáp án C.