1. 用方框内所给词的适当形式填空。

bad   our   celebrate   begin   thank

1. （1） I always my birthday with my parents, but this year I want to spend it with my friends.
3. （2） I'm writing a letter of to my uncle for the gift he gave me.
5. （3） The weather is getting and it seems to snow.
7. （4） A good is half done.
9. （5） We finished the job all by.