Răspuns:
2. If people didn't waste water, there wouldn't be water shortages in many parts of the world.
3. If I didn't have a car, I would cycle to work.
4. If factories didn't pour chemicals into rivers, rivers wouldn't be polluted.
5. If people didn't leave rubbish on beaches, they wouldn't be dirty.
6. If we took care of our planet, it wouldn't be in danger.
7. If he had a garden, he would grow vegetables.
