1. It was hard to breathe in the frosty air.

2. Common language and culture unite people into one nation.

3. All three wore hoods to hide their faces.

4. The price of dinner includes dessert.

5. We were six including our  host.

6. Tom drove to the store and bought  three cans of  insect spray.

7. The soil here is very poor.

8. They are both of one species.

9. We need to support our teachers.