VI :

1. the highest

2. the coldest

3. the most convenient

4. the hottest

5. the most modern

6. the best

7. the narrowest

8. the most beautiful

9. the most beautiful

10. the hottest

VII: 

1. interesting

2. collecting

3. musical

4. more

5. less

6. collection

7. more expensive

8. invited

9. machinal

10. relaxing

11. colorful

12. interesred

VI.

1. the highest

2. the coldest

3. more convenient than

4. the hottest

5. more modern than

6. the best

7. is narrower than

8. the most beautiful

9. more beautiful than

10. hotter than

II.

1. intesesting

2. collector

3. musical

4. more

5. less

6. collection

7. more expensive

8. to invite

9. machenic

10. relaxed

11. colorful

12. interested

Section II:

1. goes

2. will visit

3. collected

4. Have...done

Section I:

1. Tuan finds playing table tennis interesting because he can play with best frends.

2. They have visited HCM city so far.

3. Lan likes talking to her friends in her free time.

Chúc bạn học tốt ! Sai j góp ý mik nhé ^^ ( xin ctlhn )