Fill in the missing words:

1.We must to save energy.
2. There are sixty in a minute.
3. Let's sit in the under that tree.
4. The is dripping. We must fix it.
5. We don't use plastic bags because they the environment.
6. The air in the city will if we stop using so many cars.
7. Hurry up! We're going to our bus!
8. Would you like to see my collection?
9. When he saw the in the attic, he fainted.
10. The doctor says it's nothing . You just need to rest.