We'd better speed up if we want to get there in time.44/64Mark the letter A, B, C, or D to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following sentences. We'd better speed up if we want to get there in time.slow downput downturn downlie downGiải thíchĐáp án : A “speed up” (tăng tốc) trái nghĩa là “slow down” (giảm tốc, đi chậm lại)