Eric:Hi,David.Howareyou?AreyouOK? 　　David:No,I’mnot. 　　Eric:What’swrong? 　　David:It’sTuesday. 　　Eric:So? 　　David:IhavetwomathclassesonTuesday. 　　Eric:Youdon’tlikemath? 　　David: 　　No.It’ssodifficult!Myfathersaysit’sinteresting.ButIdon’t 　　thinkso. 　　Eric:Sowhat’syourfavoritesubject? 　　David:Chinese.It’sdifficultbutinteresting! 　　Eric:WhenisyourChineseclass? 　　David: 　　It’sonMonday,Wednesday,ThursdayandFriday.Ihavetogonow!Ihave 　　math,historyandsciencethismorning. 　　Eric:OK,seeyouatmusicclass. 　　David:Bye!