1. 用方框内所给词的适当形式填空。

happy   able   lonely   alone   worry

1. （1） My pet's death made me .
3. （2） I'm sorry I am to finish this task.
5. （3） Your parents don't allow you to go out .
7. （4） I often feel when my parents are not at home.
9. （5） When I was young, my parents were about my health.