Mark the letter A,B,C or D on your answer sheet to show the underlined part that needs correction in each of the following questions.
For a long time, (A) this officials (B) have been known throughout the country (C) as political bosses and (D) law enforcers
A. this
B. have been known
C. as
D. law enforcers
Đáp án : A
this -> these vì officials là danh từ số nhiều