4) Complete the sentences with mustn’t or needn’t

1. I …do homework today. I haven’t got any.
2. We …bring pets to school.
3. You …walk or run in the classroom.

1.needn't2.musn't3.musn't

 1.I have to do your homework now. I do not have any.2. We should not bring pets to school.3. You have to walk or run in the classroom.