pls pls pls pls help me pls help me plss nedd ko naaa talaga plssss need it napo plsssz

Answer:
11. a
12. b
13. I don't know
14. a
15. b
16. a
17. a or b? i don't know
18. I don't know
19. c
20. I don't know
Explanation:
Sorry i don't know the other ;)