11. A have
12. C to offer
13. B to provide
14. D decide
15. A cultuer
16. B perfered
17. D similar
18. D easy
19. B unapproachalbe
20. D sociable
21. B say
22. B sociabel
23. A young
24. D 25C
26. D role
27. C effects
28. B offer
29. D exercise
30. A features