2、呼时说:Goodafternoon.ChantThis is Wang Bing.Good morning, Wang Bing!Nice to meet you,WangBing.This is Helen.Good afternoon, Helen!Nice to meetyou,Helen.LiuTao:MissLi,thisisDavid.David:Goodmorning,MissLi.MissLi:Goodmorning.Nancy:MrGreen,thisisYangLing.YangLing:Goodmorning,MrGreen.MrGreen:Goodmorning.