为你解答.
1、请用英语唱.（翻译）Please sing in English.
2、Listening to music can help you to (relax)（用所给单词的适当形式填空）
3、(Don't wash your clothes here.)
4、(You must do your homework first when you get home)
5、We have to (arrive) at school on time.We can't be late for school.(完成句子)
6、We （mustn't） eat snacks in the classroom.It can make the room （dirty）.（同5）
7、We have to go home after school.We can't play (games).