一、按要求变化下列单词。
1. pollution(动词) ______
2. mouse(复数) ______
3. use(形容词) ______
4. it(反身代词) ______
5. write(名词) ______
6. decide(名词) ______
7. heavily(形容词) ______
8. luck(副词) ______
9. lend(反义词) ______
10. free(名词) ______
11. foot(复数) ______
12. knife(复数) ______
13. fair(反义词) ______
14. independent(名词)______
15. thick(反义词) ______
16. achieve(名词) ______
17. success(形容词) ______
18. invent(名词) ______
19. strong(反义词) ______
20. full(反义词) ______

1. pollute 2. mice 3. useful 4. itself 5. writer 6. decision 7. heavy 8. luckily 9. borrow 10. freedom 11. feet 12. knives 13. unfair 14. independence 15. thin 16. achievement 17. successful 18. invention 19. weak 20. empty