1. If I were you, I would plant vegetables in the garden.
2. More tourists would come here if the beach were cleaner.
3. What would happen if there was no cars in the world?
4. If I was his mother, I would ask him to tidy his room every day.
5. If there were no war, people would live more happily.
6. The soil wouldn’t be so polluted if the farmers didn’t use much chemical fertilizer
