Trắc nghiệm từ vựng:

1. obdurate

2. privation

3. swarthy

4. vindictive

5. foil

6. vacillate

7. egregious

8. compound

9. insidious

10. vehemently

11. heinous

12. superfluous

13. liability

14. astute

15. demarcation

16. adamant

17. debase

18. bequeath

19. invective

20. convention

Thời gian còn lại: 200 giây