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.
At this time yesterday he was talking to a friend he has not met for ten years.
A. At
B. was talking
C. has not met
D. for
At this time yesterday he was talking to a friend he has not met for ten years.
A. At
B. was talking
C. has not met
D. for
has not met > had not met
Đáp án C.