- Unit 1: Local community
https://yourhomework.net/vocabulary/lesson/000000054426 - Unit 2: City life
https://yourhomework.net/vocabulary/lesson/000000444044 - Unit 3: Healthy living for teens
https://yourhomework.net/vocabulary/lesson/000000425059 - Unit 4: Remembering the past
https://yourhomework.net/vocabulary/lesson/000000217059 - Unit 5: Our experiences
https://yourhomework.net/vocabulary/lesson/000000194062 - Unit 6: Vietnamese lifestyles: Then and now
https://yourhomework.net/vocabulary/lesson/000000160042 - Unit 7: Natural wonders of the world
https://yourhomework.net/vocabulary/lesson/000000273058 - Unit 8: Tourism
https://yourhomework.net/vocabulary/lesson/000000414047 - Unit 9: World Englishes
https://yourhomework.net/vocabulary/lesson/000000076397 - Unit 10: Planet Earth
https://yourhomework.net/vocabulary/lesson/000000427044 - Unit 11: Electronic devices
https://yourhomework.net/vocabulary/lesson/000000296039 - Unit 12: Career choices
https://yourhomework.net/vocabulary/lesson/000000489050
