ANSWERS:
1. rapid > rapidly
2. as well as > and
3. near to > near (or: close to)
4. badly > bad
5. delete "they"
6. despite of > despite
7. we > us
8. twelve > twelfth
9. different > differently
10. raise > rise
11. maintains > maintain
12. as > like
13. encouraging > encourage
14. their > his or her
15. ran > run
16. delete "words"
17. discovers > has discovered
18. delete "teams"
19. giving > to give
20. has > have