求解答过程：We must do something

"We must do something.This is something.Therefore,we must do We must do something to help her被动语态 We must do something to change their _(生活). We must do something( )(stop) the ( )(chemistry) factory fro we must do something to stop people from______. I consider it something we must never do .此句中something we mu something must do,something must not do must 加to We must do something to protect our environment.We should us we must do something to improve our english改为被动语 How dirty the water is! Yes, we must do something to stop th We must do something ________the river.A.stop polluting B.to 帮看个英语句子We must do something to improve the environment.其中动词不