Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
"Be quick! We must speed up if we don’t want to miss the flight. "
A. turn down
B. slow down
C. look up
D. put forward
Chọn B
“speed up”: tăng tốc, trái nghĩa là “slow down”: chậm lại