For a long time, (A) this officials (B) have been known throughout the country (C) as28/64Mark 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 enforcersthishave been known aslaw enforcersGiải thíchĐáp án : A this -> these vì officials là danh từ số nhiều