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.
Body language (A) is quiet and secret (B), but most (C) powerful language
(D) of all.
A. Body language
B. secret
C. most
D. of all
Đáp án C
C - the most
Ngữ pháp: so sánh hơn nhất với tính từ dài: the most + adj