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mustn't         don't  have to

You                  drive there. You can take the train.

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You                  tidy up your room.

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You _____ pick up flowers in the school garden.

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This is the smoking room at this airport . You ______ smoke in this room.

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You____ put the rubbish into the bin.

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You ______ take photos in this museum. It's against the rule.

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Travelling on mountains is really dangerous, so you _____ go alone.

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We _______ eat sweets in the classrooms.