pollution
- We must stop pollution _____ longer.
- Since nuclear(核) pollution broke out in Japan, in March,2011,we are all _____ of it very much.
- Pollution is a serious problem. Scientists have _____ some good ways to save it.
- Pollution is a serious problem. Scientists have _______ some good ways to save it.
- The pollution problem here seems to get more and more serious .Something ____with it .
- How about the pollution in the countryside?-Luckily, it’s not as serious as _______ in the big cities.
- How about the pollution in the countryside?—Luckily, it’s not as serious as _______ in the big cities.
- How about the pollution in the countryside?-Luckily, it’s not as serious as _______ in the big cities.
- How about the pollution in the countryside?—Luckily, it’s not as serious as _______ in the big cities.
- Pollution is ______bad ______many rivers are full of chemicals and kill sea creatures.