The pollution problem here seems to get more and more serious.Yes.Something ___________ with itA.has done B.must be doneC.is doing D.was done

contamination,pollution--- the differences 改错：The maths proble is too difficult.Little students can work it out . 改错：The maths proble is too difficult.Little students can work it out .请说明原因 THE problem is very diffcult.he can't work it out .（合并）THE proble is ____diffcult ____him ____work out 适当形式填空 (give) more time,the scientists will be able to work out a home solution to the proble the proble is different.I can't work it out the problem isn't easy ()for ()to work out the pollution 后面加什么介词 water pollution 前面用不用加the pollution from the traffic 英语范文 These diesels cause most of the pollution. why air pollution is the most serious? sometimes people pollution the enyironment什么意思? We are trying ___ (stop) the pollution. The pollution in Lijiang is very few. Please send me an email if you have __(diffcult)solving the用适当的词填空 proble the pollution of SO2 is now the most dangerous problem of air pollution People are pollution the land,the water and the a______ The pollution came form the smokefrom the traffic..(同义句)