1. 根据句意及首字母或汉语提示完成句子。

1. （1） Too much s food is bad for your teeth.

3. （2） The cloth feels s while yours feels rough.

5. （3） He thought about having a y sale.

7. （4） The b games are for younger kids.

9. （5） The teacher will c our homework tomorrow.

11. （6） There is a （铁路）between the two cities.

13. （7） He has had the （照相机）since 2009.

15. （8） I haven't been back to my (家乡)for two years.

17. （9） I have seen some （熊）in the zoo before.
    

19. （10） I have （借用）the book for a week.