2. Sam's room ought to be cleaned.

3. Nina's homework must be finished before going out.

4. It could be brought back by Sam this morning.

5. A message ought to be left by Henry on the table for me.

6. The windows should be cleaned.

G.

1. A car will be bought next month.

2. Football will be played after class tomorrow.

3. The meeting will be hold next week.

4. Nha Trang is going to be visited by our family next summer.

5. The driving test is going to be taken this Sunday.

6. Some delicious cake is going to be made for me.

*1. Tea can't be made with cold water.

2. All of the workers were being instructed of the plant by the chief engineer.

3. Some of my book has been taken away.

4. The meeting will be hold before May Day.

5. The engine of the car have to be repaired.

6. The window was broken and some pictures were taken away.

7. A lot of money are spent on advertising every day.

8. This room may be use for the classroom.

9. A story is going to be told by the teacher.

10. The cake is being cut by Mary with a sharp knife.

11. The car was being repaired when the accident happened.

12. Some books have just been thrown away.

13. The report have to be given to me by 3 p.m.

14. Were the birds in your garden being fed at three o'clock yesterday.

15. Must the test be finished before ten?

16. Will the children be brought home by buses.

B. The present continuous

1. A window is being cleand.

2. A photo is being taken by Nina.

3. English is being learnt by Sam at the moment.

4. My house is being built.

5. A new report is being written.

6. Novels are being read right now.

C. The present perfect.

1. This film has been seen by Tom before.

2. The newspaper has been read by Nina already.

3. These movies have been seen yet.

4. The contract has been signed.

5. The tickets have been bought by these man.

6. This teddy bear has been bought in that shop.

D. The past simple

1. Both English and Science were taught by Mrs. Nina last year.

2. My laptop was broken.

3. My children were sent tp summer camp.

4. The thief was caught.

5. The report was finished by the secretary last night.

6. A gift was sent to Sam's father.

*The past continous

1. Books were being read at 7 o'clock by me yesterday morning.

2. Television was being broken at 9 o'clock last night.

3. A song was being sung by Nina when you came.

4. While the house was being cleaned by Nina, her back was hurt.

5. Their house was being decorated when you phoned.

6. A sandwich was being eaten.

F. Modal verbs

1. This house could be bought.