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) The people who (B) they hadn't seen the weather forecast (C) were caught (D) unaware by the hurricane
A. The
B. they
C. were
D. unaware
Đáp án B
Who: là đại từ quan hệ, thay thế cho chủ ngữ chì người
E.g: The girl who is sitting next to Mike is my younger sister
=> Đáp án B (they => bỏ they)