1. If people.....took bottles, newspapers and cans to special
bins, they could be recycled. 2. If I ... were you, I would join
Greenpeace.3. If we didnt pollute our seas, they ... would be full of
fish.4. If l were you, l ....would continue) the exploration.5. If you had
read these books, you .....would have know) more about this environmental
problems.6. If we had protected the environment seriously, our planet
... would have been) out of danger.7. If people ... had avoided) damaging nature, many
species of animals wouldn't have disappeared.8. If she .had ...heard) the conversation, she wouldn't have come there.