Complete the sentences with must, mustn't or needn't. 1. you ……………… arrive in class on time. 2. you ……………… use mobile phones in class. 3. you ……………… bring a dictionary to english as there are some in the classroom. 4. you ……………… be polite to the teachers. 5. you ……………… do your homework on time. 6. you ……………… bring sandwiches for lunch. there's a canteen. 7. you ……………… go to afterschool activities. 8. you ……………… talk while the teacher is. 9. you ……………… leave any money in the classroom. 10. you ……………… bring your own paper. the school provides it

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