Vocabulary Quiz:

1. mental

2. resident

3. speak

4. difference

5. arduous

6. splendid

7. vapour

8. sustain

9. opinion

10. semi-autonomous

11. virus

12. ethanol

13. high-tech

14. barren

15. jumps

16. extremist

17. human intervention

18. sitcom

19. authority

20. edifices

Time left: 200 seconds