Fiftyyearsago,myhometownhadneithertunnelnorthetallbuilding.Anditwasthesamewithhumanityandautomobiles.However,nowadays,tunnelshavebeenbuilt,andagreatdealofskysrapersalsoappearinthecity.Quantitiesofautomobilesandhumanitiesgrowaswell.Timeflies,thingsaregettingprettymuchdifferent.