Say what you must or mustn't do.
1)Walk on the grass in the park
2)Help people
3)Speak on the mobile in class
4)Take photos in the museum
5)Look after the pets will
6)Go to bed very late
7)Talk with friends in the lessons
8)Shout at people

Спасибо

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1. We must not walk on the grass in the parks2. We must help people3. We must not speak on the mobile in class4. We must not take photos in the museum5. We must look after the pets 6. We must not go to bed very late7. We must not talk with friends in the lessons8. We must not shout at people