1. 用所给词的适当形式填空

1. （1） the students (watch) a race now?

3. （2） Mr. Wang has five (child). One son, and the others are daughters.

5. （3） Look! The children (play) happily in the park (公园）.

7. （4） It's 7:00 am. The Greens (have) breakfast at home.

9. （5） He often (do) his homework at school, but now he (do) it at home.