Turn the sentences from Active into Passive. Omit the agent if it can be omitted.
Example: People speak English all over the world. – English is spoken all over the
world.
1. Nick does not use this car. 2. Many people speak English
today. 3. I always invite them to my parties. 4. Every Christmas
they give Sandy a present. 5. People eat bread every day. 6. We
water these flowers every evening. 7. An international company
publishes these books. 8. Cats eat mice. 9. We do not speak
German here. 10. They produce good cars in Sweden. 11. They
clean the rooms every day. 12. Millions of people use the
Internet every day. 13. They make bottles of glass. 14. They grow rice in China. 15.
They make Rolls Royce cars in England.

1. This car is not used by Nick. (The agent "Nick" can be omitted because it is not necessary for understanding the sentence.)
2. English is spoken by many people today.
3. They are always invited to my parties. (The subject "I" in the active sentence becomes the agent in the passive sentence.)
4. Sandy is given a present every Christmas by them. (The agent "Every Christmas" can be omitted.)
5. Bread is eaten every day by people.
6. These flowers are watered every evening by us.
7. These books are published by an international company.
8. Mice are eaten by cats.
9. German is not spoken here by us.
10. Good cars are produced in Sweden by them.
11. The rooms are cleaned every day by them.
12. The Internet is used every day by millions of people.
13. Bottles are made of glass by them.
14. Rice is grown in China.
15. Rolls Royce cars are made in England.