Unit 3. Teenagers

Unit 1. Leisure time

Unit 2. Life in the countryside

Unit 3. Teenagers

Unit 4. Ethnic groups of Viet Nam

Unit 5. Our customs and traditions

Unit 6. Lifestyles

Unit 7. Environmental protection

Unit 8. Shopping

Unit 9. Natural disasters

Unit 10. Communication in the future

Unit 11. Science and technology

Unit 12. Life on other planets