помогите пожалуйста
Choose the correct alternative.In two sentences, both alternatives are correct
1 You needn't/don't need come to class tomorrow.
2 You mustn't/aren't allowed to take your own food into a restaurant.
3 Usually at university you mustn't/don't have to go to classes all day.
4 You'd better not/shouldn't hand in your work late.
5 Should/Ought we leave at 6 o'clock? 6 You don't have to/mustn't leave your bags unattended at an airport.​