ПОМОГИТЕ ОЧЕНЬ СРОЧНО!!!!

Измени первое предложение, так чтобы в нем был модальный глагол.
1 It's not allowed to go swimming at this beach.
2 It’s not a good idea to buy this tinned food. It’s genetically modified.
3 You waste so much energy. It’s important for you to switch off the lights when you leave the room.
4 It’s not necessary for you to leave now.
5 You aren’t allowed to walk on the grass.
6 All students wear uniform at our school. It’s the law.
7 You don’t have a permission to be loud during the lesson.