将下列句子改为被动语态。
1. More and more people speak Chinese in the world.
__________________________________________
2. We can find new buildings everywhere in our city.
__________________________________________
3. They will set up a new school in the small town next year.
__________________________________________
4. We can use the water we use for washing rice again to Water flowers.
__________________________________________
5. Students can't take magazines out of the reading room without permission.
__________________________________________
