6. didn't have - 7. didn't know - 8. bought
VI.
1. studied - 2. stopped - 3. tried - 4. rescued - 5. jumped - 6. walked - 7. closed - 8. started - 9. asked - 10. laughed
D. Writing
I.
1. How often does Minh brush his teeth?
2. Why is Simon in a lot of pain now?
3. What did you feel after eating that food?
4. When did Nga go to see the dentist?
5. Who will check your teeth?
6. How long did it take Dr Phong to fill Van's tooth?
7. Where is your brother going to?
8. What did Mr Cuong do at 5.30 yesterday?
9. Whose letter did Hoa receiv 5 days ago?
10. How many students are there in Lien's class having toothache?
E. Practise Test
1.
1. did - 2. taught - 3. sent - 4. spent - 5. began - 6. cut - 7. put - 8. gave - 9. wrote - 10. was/ were - 11. bought - 12. had - 13. took - 14. went - 15. made - 16. thought - 17. saw - 18. ate - 19. sang -
20. wore
