简单英语造句1、Don't2、Do3、no+doing4、be+(adj.)5、can't6、mustn't7、let'

1.Don't do it again.Don't stay in the same place
2.Do everything by yourself.Do you believe it
3.No smoking.No spitting.
4.i am young.I was happy
5.I can't hear you.He can't leave his child alone.
6.As students,we mustn't copy homework.You mustn't throw rubbish about
7.Let's go for a walk.Let's play football together.