Modals must/have to/need

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1. Children ... chew gum at the lesson.

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2. Nina ... tidy up the classroom. She's on duty today.

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3. Bill ... talk loudly in the library.

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4. Tina ... brush her teeth in the morning.

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5. I ... more time to finish my work. It's difficult.

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6. Greg ... bring the letter from his doctor. He was ill.

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7. You ... smoke here! It's not allowed.

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8. Bycyclist ... to remember to signal when they turn.

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9. There are a lot of people here. We ... more chairs.

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10. You ... to wear a school uniform. It's a rule.

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11. I have no time to talk, sorry. I ... to go to work.

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12. It's very cold outside, you ... to take a jacket.