1. There are twelve classes in my school.

2. You must do your homework before going to school.

3. Ha is more hard-working than Quang.

4. Lan has long and black hair.

5. Shall we play volleyball this afternoon?

6.There isn't a bookshelf in my bedroom.

7. The computer screen is in front of the dog.

8. My favourite subject is English.

9. Phong lives with his parents, his little sister.

10. I am a pupil at Cau Giay Primary school.

11. Her hair is long and black.

12. There are many beautiful beaches in Viet Nam.

13. Minh is the tallest in my class.

14. The museum is in front of the hospital.

15. Lan's house is more expensive than my house
IV/1. A: watch->watches
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