1. 选词填空

stay up, clean up, wash hands, look up, take off

1. （1） What a mess! You should your bedroom first.
3. （2） We should before eating. It's a good habit.
5. （3） You can new words in the dictionary.
7. （4） Don't too late, or you will feel sleepy the next day.
9. （5） The radio says the plane will in ten minutes.