III. Change the following sentences into passive voice.
1. They can’t make tea with cold water.- ..................................................
2. The chief engineer was instructing all the workers of the plant.-.............................................................
3. Somebody has taken some of my books away.- ...........................................................
4. They will hold the meeting before May Day.- ....................................................
5. They have to repair the engine of the car.-............................................................................
6. The boys broke the window and took away some pictures.- ........................................................
7. People spend a lot of money on advertising everyday.- ..................................................................
8. They may use this room for the classroom.- .................................................................
9. The teacher is going to tell a story.- .................................................................
10. Mary is cutting the cake with a sharp knife.-....................................................................
11. The children looked at the women with a red hat.- .................................................................
12. They have provided the victims with food and clothing.- ..............................................................
13. The teacher explains the lesson. -..............................................................
14. Mrs Green is cooking the food in the kitchen.-..........................................................
15. The doctor examined the patients.- ........................................................
16. These boys made that noise.- ..............................................................
17. People speak English all over the world.- .................................................................
18. He gave him back the money last Sunday.- ...................................................................
19. I can’t do these exercises quickly.- ..........................................................
20. She had finished the report by noon.- ..........................................................