Something must been done to stop polluting.这句话对吗?

Something must been done to stop polluting.这句话对吗? something must do,something must not do must 加to There must be something wrong. You must have something,anything! something must fit in this Christmas must be something mo must have been done must have done must have/ must have been的区别 英语翻译he felt ____ that there must have been something unusual happening to his school.a very strong b so strong c very strongly d so strongly 完形填空He must have been compietely lost in something he was reading because I had to tap on the This would not be love,but it would be something precious,something perhaps even better than love,a friendship for which i had been and must ever be grateful.以上这句英语出自哪里?请翻译成汉语. 语法题目请分析为什么不选B谢谢Do u smell smoke?Yes.Something ( ).A.should have burnedB.must have burnedC.should have been burningD.must be burning 一道英语题There must have been something wrong with the society__no one offers to help those who...一道英语题There must have been something wrong with the society__no one offers to help those who are in trouble.为什么先行词是society there must be something wrong to it It must be something like it. Must Have Done Something Right 歌词 you must be something to talk have you ever been to collect something?