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Unit 1. Leisure time
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Unit 2. Life in the countryside
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Unit 3. Teenagers
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Unit 4. Ethnic groups of Viet Nam
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Unit 5. Our customs and traditions
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Unit 6. Lifestyles
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Unit 7. Environmental protection
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Unit 8. Shopping
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Unit 9. Natural disasters
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Unit 10. Communication in the future
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Unit 11. Science and technology
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Unit 12. Life on other planets
