形容词、副词答案：1.the strongest; three 2.better; than 3.so did 4.enough to 5.something wrong 6.snowed heavily 7.doesn't; any 8.more; else 9.too; to 10.Nobody; well

冠词答案：1. ×; a 2.an 3. × 4. × 5. × 6. a 7.a; × 8. ×; ×; × 9.the 10.×; × 11. the; ×; × 12. × 13.the 14.× 15. × 16.the 17.the; × 18.the 19.the 20. The; the

数词答案： 1-5 B A D C C 6-10 B A B A A

代词答案：1.B 2.B 3.B 4.C 5.D 6.D 7.B 8.B 9. C 10. D 11. B 12. D 13.A 14.D 15.C 16.B 17. D 18.A 19.A 20.A

名词答案：1. A 2. B 3. A 4. A 5. D 6. C 7. D 8. A 9. D 10. B 11. B 12. B 13. B 14. B 15. A 16. B 17. A 18. B 19. C 20. A

20. The children are waiting ______ the gate ______ their mother.

19. The teacher is writing ______ red ink ______ a piece of paper.

18. It's cold and the temperature is ______ zero during the night.

17. Thanks ______ your help, I finished the work before dark.

16. Please meet your uncle ______ noon ______ Saturday.

15. You must learn these words ______ heart, and answer my question______ English.