You _______ put the litter to the bin.
must
You _______ keep your bedroom tidy.
must
You _______ listen to the teacher.
must
You _________ shout in the library.
mustn't
We ________ make a mess when we paint!
mustn't
You ___________ fight with your classmates.
mustn't
You ________ pass your exams.
must
You _______ do your homework.
must
You ________ run in the corridors.
must
You _______ take care of your pets.
must
You _______ pay attention at school.
must
We _______ shout in class.
mustn't
You _______ be quiet in the library.
must
We _________ forget our books.
mustn't
You _______ run across the road.
mustn't