PEP7Unit2bikebusplanetraincarbusplaneshiptaxibiketrainsubway地铁从全国的情况来看，已建有地铁或已开工建设地铁的城市有：北京、上海、广州、天津、大连、深圳、南京、武汉、重庆、长春等。正式提出希望建设地铁的城市有：成都、杭州、沈阳、西安、哈尔滨、青岛、苏州等。WherecanweseesubwaysinChina?Howdoyoucometoschool?你是怎么来上学的？ChenJiecomestoschoolbysubway.Icometoschoolbuybus.乘地铁Howdoyoucometoschool?：Icometoschoolbybus.：Howdoyoucometoschool?Icometoschool……bybusbyplanebyshipbytaxibybikebycarbytrainonfoot:HowdoyougettoBeijing?:Byplane.A:Howdoyougetto?B:Bytrain\plane\ship\……onfoot.theUSABeijingShanghai
