1
You should to it when your teacher asked you in the english class.
2
You can´t ------ the garbage on the floor
3
It is dangerous for you health
4
You have to do it when you have a fiinal exam
8
you shouldn´t do it when you are in class.
9
You should do it when your teacher is explaining the lesson 5
10
You don´t have to it in the classroom
