1. 用所给单词的适当形式填空

1. （1） Linda (not do ) her homework on Sundays.

3. （2） Look ! The Greens （play） games together in the park. What a happy family！
   

5. （3） Jason didn't hear the ring , for he (water) the flowers in the back yard.
   

7. （4） A little bird (fly) in through the open window and she set it free at once.
   

9. （5） Look at those clouds ! I think it (rain).  

11. （6） —Is your father at home ?

     —No, I'm afraid he (go) out.
    

13. （7） I overslept this morning . By the time I got to the train station, the train (leave).