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.
The police tried in vain to break up the protest crowds in front of the government building; further measures needed to be employed.
A. unskillfully
B. violently
C. effectively
D. eventually
Đáp án C
- in vain: vô ích, không ăn thua gì, không hiệu quả
>< effectively: có kết quả, có hiệu lực, có hiệu quả, có ích