1. 用所给词的适当形式填空

1. （1） The Internet makes our life nicer, (easy) and more colorful than before.

3. （2） -Where's your sister? -She's practicing (play) football.

5. （3） This is a (type) farmer family.

7. （4） It's time (have) rest. Let's stop working.

9. （5） The old man was very strict and he didn't let us (come) in.

11. （6） We must study hard and be a (success) person.

13. （7） Keep (work) hard and you will succeed.

15. （8） He does lots of things on weekends, like (clean) the room, doing some washing, and so on.

17. （9） Their parents aren't here, so they look after (they).
    

19. （10） It's a(an) (usual) experience(经历),few people have chances to do it.