----- Nội dung ảnh ----- ``` 2. Complete the sentences with must/ mustn’t: 1. You ________ eat in class. 2. You ________ keep your room tidy. 3. You ________ leave food on the tables in class. 4. You ________ say bad words to your friends. 5. You ________ clean the kitchen table after cooking. 6. You ________ eat wild mushrooms. 7. You ________ write on the walls or on the desks. 8. You ________ do your homework before going to school. 9. You ________ drink enough water every day. 10. You ________ drink a lot of beer. ```