1) change the following sentences into passive. 1. the chinese invented paper 2. alexander fleming discovered penicillin. 3. they interview applicants. 4. we spent a lot of money at the supermarket. 5. they serve lunch from 12.00 to 2.00 p.m. 6. we will finish the work in time. 7. they collect rubbish every day. 8. they will repair my car by sunday. 9. we can solve this problem. 10. a tall woman in a uniform took our passports. 11. they allowed us to take some photographs. 2) change the following senteces into passive. 1. the goverment will pass a new law. 2. they sell clothes in this shop. 3. her mother woke her up at seven o'clock. 4. they will pay us twice a month. 5. we sent the invitations a week ago. 6. you can decorate the walls with posters. 7. the fire-fighters put out the fire very quickly. 8. our neighbour waters our plants for us when we are away. 9. you should discuss the problem in more detail. 10. he will give us some instructions later.

1. Paper was invented by the Chinese. 
2. Penicillin was discovered by Alexander Fleming.
3. Applicants were interviewed by them.
4. A lot of money was spent at the supermarket by us.
5. Lunch is served from 12.00 to 2.00 p.m by them.
6. The work will be finished at time by us.
7. Rubbish is collected every day by them.
8. My car will be repaired by them by Sunday.
9. This problem can be solved by us.
10. Our passports were taken by a tall woman in a uniform.
11. We were allowed to take some photographs.

1. A new law will be passed by the government.
2. Clothes are sold in this shop (by them).
3. She was woken up at seven o'clock by her mother.
4. We will be payed twice a month by them.
5. The invitations were sent a week ago by us.
6. The walls can be decorated with posters (by you).
7. The fire was put out very quickly by the fire-fighters.
8. Our plants are watered for us by our neighbour when we are away.
9. The problem should be discussed in more detail by you.
10. We will be given some instructions later.
Или Some instructions will be given to us later by him.