Ответы
1. Writer 1 mentions a metro system.
2. Writer 4 mentions buses that don't use petrol. 3. Writer 2 mentions an area for insects in an airport.
4. Writer 4 mentions a green hotel
5. Writer 3 mentions a day when you cannot use a car.
6. Writer 2 mentions information about projects for young people.
7. Writer 4 was surprised by the amount of pollution in Adelaide, Australia.
8. Writer 1 thinks that people should not have to pay for transport.
9. Writer 2 thinks that the idea of having gardens and a butterfly farm in an airport
is intelligent.
10. Writer 3 likes the idea of having a day when cars are not allowed into the city
because it makes people think about the environment.
11. Writer 2 thinks that people need to learn to be tidy.
12. Writer 4 thinks it's a good idea to recycle energy and water.