“before the problem becomes things of the past”这句话如何翻译和理解?

Was noise pollution a problem before the _____(close)of the old airport? Noise pollution was a problem before the ____ (close)of the old airport 为什么? Was noise pollution a problem before the _______(close) of the old airprot? before the ___(close) of the factory ,noise pollution was always a serious problem. 翻译The doctor gave him a complete examination before telling him the problem Was water pollution a problem before the (c )of the factory. “before the problem becomes things of the past”这句话如何翻译和理解? Fix the problem before it gets worse.用成语来表达 You can't say anything about the problem before you do a s____ of it. They will stay there before they find the solution to the problem.（改为同意句）They ( )( ）（ ）they ( )the problem. 急、英语 Noise pollution was a problem before the ____ (close)of the old airportNoise pollution was a problem before the ____ (close)of the old airport.答案应该是closing ,但我写的是closed 请说明下理由、 英语翻译he spelling of english has always been a problem but it was more of a problem in the days before a dictionary.怎么翻译 Was there any problem with having to take two tablets before meals and one in the night?怎么翻译. Be sure there is a problem in the first place before working hard to solve 怎么理解 the problem （）me is a very difficult one A.after B.before C.from D.past what is the problem the problem of 翻译 The Popultion Problem in