1. If we keep on using more and more cars, we are running out of oil.

If we keep on using more and more cars, we will run out of oil.

2. B.recycling=>recycle
3. People collect the broken glass and sending it to the factories.

People collect the broken glass and send it to the factories.

4. If there will be too much exhaust fume in the air, our breathing will be badly affected.

If there is too much exhaust fume in the air, our breathing will be badly affected.

5. Reusable bags are good because they make of natural materials.

Reusable bags are good because they are made of natural materials.