Waste water from factories pollutes rivers改为被动语态

Waste water from factories pollutes rivers改为被动语态 把People shoundn’t waste water改为被动语态 They have found a way to make waste water clean.如何让改为被动语态 Have you found ways to make waste water clean?改为被动语态 We should stop factories from pouring waste water into the r don't throw waste paper here.(改为被动语态） waste water from cleaning factories/many/release/water/into/rivers/dirty连词成句 (许多河流和湖泊开始被the waste water from factories所污染)用英语怎么翻译? 改被动语态 They have found ways to make waste water clean. They have found ways to make waste water clean.的被动语态则怎么变? The harmful gas from the factories pollutes th air.The harmf