Gemerally,air is heavily polluted _______ there are factorie

Gemerally,air is heavily polluted _______ there are factorie 问下题选哪个,为什么?Generally,air will be heavily polluted ____ there Polluted air and water are hamful to people's health. There is _______(little) air pollution in Sunshine Town than the polluted air is very dangerous _______the people's healt I don't want to move to that city,it is heavily polluted.pol 被污染的空气会使人感到不舒服 The polluted air can _______ people_________ There is air e____. There is air c_____. There is( )air-conditioner. When people are used to polluted air,it might be diffucult f Most people do not realize that they are (b ) polluted air.