3. What is your favourite subject?

4. What about going swimming?

5. What a delicious the birthday cake!

6. What is her date of birth?

7. Lan works less hour than Nam.

8.Nile river is the most long river in the world.

9. There are over live thousand books in the school library.

10. There are many interesting places in HN.

11. My younger sister has more toys than me.

12. Lam has a summer vacation with ten days off.

13. It takes me ten minntes to walk from home to school.

14. I spend about two hours each day doing my homework.

15. Are you interested in listening to music?

16. Mai's brother drinks less milk than she.

17. The red dress is more expensive than the blue dress.

18. Mr. Hai usually has stomach problems, so he eats dinner very close to the bedtime.

19. My dad has a lot of carved eggs but he has never sold any of them.

20. You will get a breathing problem or clean your bedroom more regularly.

21. It is a good ideal to eat different kinds of fruits and vegetables every day.

22. My brother doesn't like ice-skating because he thinks it is dangerous.