1.Mary types letters in office.

⇒Letters are typed in the office by Mary

2.His father will help you tomorrow.

⇒You'll be helped his father tomorrow.

3.Science and technology have comepletely chanced human life.

⇒The humans life has completely been changed with science and technology.

4. Peter broke this bottle

⇒This bottle was broken by Peter.

5.They are learning English in the room

⇒English is being learnt in the room.

6. Nothing can change my mind

⇒My mind can't be changed.

7. No one had told me about it.

⇒I hadn't been told about it.

8. I don't know her telephone number

⇒Her telephone number isn't known.

9. My students will bring the chirden home

⇒The children will be brought home by my students.

10. They sent me a present last week

⇒I was sent a present last week

11. She gave us more information

⇒We were given more infomation.

12. The chief engineer was instructing all the workers of the plan.

⇒All the workers of the plan were being instructed by the chief engineer.

13. They can't make tea with cold water

⇒Tea can' be made with code water.

14. Somebody has taken some some of my books alway.

⇒Some of my books have been taken away.

15.They will hold the meeting before May Day.

⇒The meeting will be held before May Day.

16, They have to repair the engine of the cars

⇒The engine of the car has to be repaired.

17. The boys broke the window and took alway some pictures

⇒The window was broken and some pictures were taken away by the boys.

18. People spend a lots money on advertising every day

⇒A lot of money is spent on advertising every day.

19. Teacher is going to tell a story

⇒A story is going to be old by teacher.

20. Mary is cutting a cake with a sharp knife

⇒A cake is being cut with a sharp knife by Mary.

21. The chirden looked at the women with a red hat

⇒The woman with a red hat was looked at by the children.

22. They have provided the victims with food and clothing

⇒The victims have been provided with food and clothing.

23. People speak E in amost every corner of the world

⇒E is spoken in almost every corner of the world.

24. You mustn't use this machine after 5:30 pm

⇒This machine mustn't be used after 5:30 p.m.

25. After class, one of the students always erases the chalk board

⇒After class, the chalk boarf is always erased by one of the students.

#Chúc bạn học tốt

1. Letters are typed by Mary in office.

2. I will be help by his father tomorrow.

3. Human life has been completely chanced by science and technology.

4. This bottle is broken by Peter.

5. English is being learnt in the room.

6. My mind can't be changed .

7. I had been told about it.

8. Her telephone number isn't known .

9. The children will be brought home by my students.

10. A present was sent me last week.

11. More information are given us.

12. All the workers of the plane were being instructed by the chief engineer.

13. Tea can't be made with cold water.

14. Some of my books has been taken away.

15. The meeting will be held before May day.

16. The engine of the cars have to repaired.

17. THe window has been broken by the boys and some pictures are taken away.

18. A lot of money are sent on advertising everyday.

19. A story is going to be told by teacher.

20. A cake is being cut with a sharp knife by Mary.

21. The woman with a red hat was looked at by the children.

22. The victims have been provided with food and clothing.

23. English is spoken in almost every corner of the world.

24. This machine musn't be used after 5 : 30 p.m

25. After class, the chalk board is always earased by one of the students.

26. The question of late payment of the bills at the board meeting was raised.