Ответ:

1. c illegal

2. e. unpleased

3. a. immoral

4. e. unjoined

5. b. incorrect

6. e. unhappy

7. c. illegible

8. d. irregular

9. f. disconnected

10. c. illiterate

11. e. uncountable

12. d. irresponsible

13. f. disgraced

14. e. unfair

15. a. impolite

16. c. illogical

17. a. immature

18. f. discontinued

19. b. intolerant

20. a. improper