1. 根据句意，用方框中所给单词的适当形式填空。每词限用一次

keep   write   gym   picture   use   clean

1. （1） My pen is at home. Can I yours?
3. （2） Here is aof my home. It looks nice.
5. （3） —How long can Ithe book? —Two weeks.
7. （4） —What is Mom doing?

   —She isthe house.

9. （5） The girl is two years old, so she can't any words.
11. （6） —Where is Dave?

    —He is playing ping-pong in the