Ответы
1 They were shown (show) on TV that after the hurricane New Orleans'
sports arena (became) shelter for 20,000 people.
2 Soon it (became) clear that the federal government's response (had been) too slow.
3 Last year China (was predicted) to become the World's biggest greenhouse gas polluter.
4 It (was mentioned) at the conference that the Kyoto Protocol (had not been ratified) by Australia and the USA.
5 Do you (have) separate rubbish bins for paper, glass andaluminium in your area?
6 This year nearly a quarter of all cars that (have been sold) in the USA are big cars suitable for off-road action.
7 They (will have completed) the new recycling factory by the end of the year.
8 Protecting the environment is not an easy problem to solve, but I'm sure it
(will be solved) one day.