按要求完成下列各題。
1. know (同音詞) ___________________
2. fast (比較級) ___________________
3. fast (反義詞) ___________________
4. country (復數(shù)形式) ___________________
5. city (復數(shù)形式) ___________________
6. leave (反義詞) ___________________
7. west (反義詞) ___________________
8. buy (同音詞) ___________________
9. younger (反義詞) ___________________
10. tall (反義詞) ___________________
11. this (反義詞) ___________________
12. that (復數(shù)形式) ___________________
13. go (第三人稱單數(shù)形式) ___________________
14. do (第三人稱單數(shù)形式) ___________________
15. have (第三人稱單數(shù)形式) ___________________
16. bus (復數(shù)形式) ___________________
17. glass (復數(shù)形式) ___________________
18. first (基數(shù)詞) ___________________
19. do (現(xiàn)在分詞) ___________________
20. north (反義詞) ___________________