Chọn đáp án đúng nhất

1. A. compulsory
B. technology
C. academic
D. eliminate

2. A. exploration
B. attractive
C. conventional
D. impatient

3. A. responsible
B. apprehension
C. preferential
D. understanding

4. A. responsibility
B. trigonometry
C. conversation
D. documentary

5. A. doubtful
B. solidify
C. politics
D. stimulate

6. A. brotherhood
B. vertical
C. opponent
D. penalty

7. A. economics
B. society