have to , don't have to, mutsn't modal necessity

You ______bring water. There are drinking fountains all around the school.

You ________bring anything dangerous to school.

You ________be on time for classes.

• must

• both

• have to

You __________use mobiles or other handheld devices during class.

You _________ bring snacks. Fruit is provided for all students at break time.

You _________ bring lunch, but you can if you want. Packed lunches can be eaten in the dining hall.

You _________ eat or drink in the classrooms. Food and drinks are only allowed in the dining hall.

You __________ stay on the school premises after six o’clock. The school is closed to students after this time.

You __________book the sports rooms in advance. Students are not allowed to use the sports rooms without permission.

• must

• have to

• both

All sports facilities are free. You _____________ pay for them.