Three things you mustn't do in class
!
Three things you don't have to do when you're young
!
Three things you have to do if you want to improve your English
!
Three things you have to do every day
!
Three things you don't have to do when you're on holiday
!
Three things you should do in the morning
!
Three things you mustn't do in a cinema
!
Three things you shouldn't do when you're driving a car
!
Three things you ought to do if you have a pet
!
Three things you don't have to do if you shop online
!
Three things you mustn't do in a library
!
Three things you shouldn't do in a park
!
Three things you ought to do at home
!
Three things you must do before you get on an airplane
!
