I/

1. the students were grade 7 have a excursion last year

2. Minh will be fourteen next month

3. Mr.Brown is teaching English now

4. She does aerobics every morning

5. She ate a lot of sweet some day ago, so she ill now

6. They are working on the farm at the moment

7. They will have a party tonight

8. She forgot do her homework yesterday

9. he often plays soccer after school

10. The dentist will fill the cavity in him tomorrow

II/

1. Filled - hurting

2. Do you need - feel

3. booking- forgo- will telephone

4. am going to buy

5. didn't want- left

6. gets up- brushes- got up- brushed- was

7. didn't eat- ate- drank

8. Did ( you ) go- went

9. were- had

10. didn't write- is phoning

11. isn't working

12. does ( it ) cost

13. Did ( you ) go out- went- didn't enjoy

14. will travel

III/

1. punished

2. fixed

3. eats

4. forgot

5. recieved

6. checked up

7. did not iron

8. spoke

9. tidied

10. did not have Tuesday visit

IV/

1. How often does Minh brush his teeth?

2. Why is Simon in a lot of pain now?

3. How 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 till Van's tooth?

7. Where is your brother going to?

8. What did Mr. Cuong do at 5.30 yesterday?

9. What did Hoa receive five days ago?

10. How many students are there in Lien's class having toothache?