1. A

2. A

3. A

4. C

5. C

6. C

A

1.b

2. a

3.a

4. a

5. b

6. a

7. b

8. b

9. a

10. c

11. f

12. a

1. Minh went to the dentist because he had a bad toothchache yesterday

2. The dentist looked at his teeth and told him not to worry 

4. Most the chidren feel scared when they come to see the dentist 

    cau 3 lam oi ko ghi laij nx nhoa 

lop 8 con giao t.a lop 7 lam j ko bt z

????