Помогите с заданием. Нужно вставить слова в правильной форме (10 класс база)

a)
2) endless
3) homeless
4) sleepless
5) fearless
6) painless

b)

1. achievement
2. activity
3. applying
4. beginning
5. connecting
6. declaration
7. development
8. happiness
9. humanity
10. illness
11. imagination
12. meeting
13. payment
14. punishment
15. reaction
16. reference
17. resistance
18. safety
19. suffering
20. willingness

a)

1. ++
2. endless
3. homeless
4. sleepless
5. fearless
6. painless

b)

1. reference, resistance
2. beginning, meeting, suffering
3. achievement, development, payment, punishment
4. activeness, happiness, illness, willingness
5. connection, application, declaration, imagination, reaction
6. humanity, safety