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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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Review 1
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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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Review 2
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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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Review 3
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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
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Review 4
Danh sách bình luận