【導(dǎo)讀】aretoday.3.WhatdoesBettyask?4.WhatdoesDamingask?past?”。.。past?Yes,Betty?andpollution?safertoday?past.Lifeissafer,certainly.protectustoday.Monday.Listenandread.Betty:Nearlyfinished.?Mum:Yes,ofcourse,Ido.today,andtheylive. there'slessfear?carsisdoubled?,the. Betty:Whataboutwork?didfiftyyearsago?seldom?Why. don'tyougoandaskMrsLi,ourneighbour?She's. Betty:That'sagoodidea.I'llgoandaskher.Mum:Remembertospeakup!She'sabitdeafnow.·Nearlyfinished.·That'strue.·Isuppose...