1) Visitors can’t / have to / don’t have to clean their rooms at a hotel. The cleaners do it. 2) You can’t / must / mustn’t get permission to invite friends in your room. 3) The students needn’t / mustn’t / have to drive on campus. It’s forbidden. 4) I’m afraid you can / can’t / needn’t go out now. It’s too late. 5) He has to / can’t / mustn’t do homework every day. 6) Doctors have to / can’t/ needn’t wear a uniform at work. 7) You can / must / don’t have to stop at the red light. 8) Can / Need / Must I go outside, please? 9) You mustn’t / must / can’t enter the school before 7 am. The entrance is closed. 10) We don’t have to / must / mustn’t be late. It’s an important meeting.​