Відповіді: Стр.156 (3)

3. Complete the sentences using the second conditional.

1. Cities would be cleaner if people didn't use cars for short journeys.

2. If more people visited this nature reserve, there would be more money to spend on conservation.

3. Raising money for wildlife projects would be easier if people understood how important the work is.

4. Some animals wouldn't survive if people didn't protect them.