before the ___(close) of the factory ,noise pollution was always a serious problem.

before the ___(close) of the factory ,noise pollution was always a serious problem. 用所给动词的适当形式填空：Don`t forget ___(close) the windows before you leave the room. Don't forget to close the window before you leave,Mary改为同义句）___ ___close the window before you leave,Mary please close the door ___(quiet). Close the door. 的同义句 ___ ___ the door ---------(close)the windows before you leave the classrom. Before you leave the classroom,please r____to close the windows. Close the windows before you leave the classroom.为何Close用原型,不用动名词? Be ----to close the windows before you leave. I____(close)the windows before I leave.动词填空 The letter ___ ___ ___ ___ ___ ___ ___(提醒了我她所说的话)before Close the windows well before going to bed.close为什么要用原型? ___the windows before you leave the classroom.A.To close B.Closing C.close D.Closed before G close my He seemed to have read the book before.转换句子换成It ___ ___ ___ ___ ___ the book before. Close the windows well before going to bed.为什么before后要跟动词ing形式? 关于before( )the windows well before ( )to bed.用close和go的正确形式填空 I ___(记得)sitting close to the radio.