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.
(A) My sister told me that (B) she had met my teacher (C) at the supermarket (D) yesterday
A. My sister told
B. she had met
C. at the supermarket
D. yesterday
Đáp án : D
D -> the day before. Trong câu gián tiếp phải lùi thì.