Chuyen sang phủ định, nghi vấn và tra lỗi:
1. My mother is a teacher
- My mother is not a teacher
? is your mother  a teacher?
2. We are at school now.
- We are not at school now.
? are you at school now?
3. They are very good
- They are not very good
? are they very good?
4. He is an engineer.
- He is not an engineer.
? is he an engineer?
5. Our school is on Luong Nghi street
- Our school is not on Luong Nghi street
? is your school  on Luong Nghi street?
6. Miss Hoa often goes jogging in the morning.
- Miss Hoa doesn't often go jogging in the morning.
? does Miss Hoa often go jogging in the morning.?

7. I read books inn my free time.
-  I read don't books inn my free time.
?  do you read books inn your free time.
8. Our house has 5 rooms.
- Our house don't have 5 rooms.
? does your house have 5 rooms.