Люд! Помогите пожалуйста прошу вас! Безотлагательно нужна! Упр 7. Заблаговременно спасибо

1) They have shown 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 greenhous 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 and aluminium 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 had 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.