When people are used to polluted air,it might be diffucult f

When people are used to polluted air,it might be diffucult f Polluted air and water are hamful to people's health. 如何翻译?People are richer than they used to be. Most people do not realize that they are (b ) polluted air. Be quiet!It's rude to interrupt people when they are talking Be quiet!It's rude to interrupt people when they are tal Be quiet!It’s rude to ____ people when they are speaking. now the air in our city is-----than it used to be .something Nowthe air in our city is ____than it used to be now air in our town is __ than it used to be.something must We are no longer what it used to be It might be surprising for some people to believe that,in to