题目内容：
ItendtoacceptanyideaputforwardbyexpertsonTV.Oneday,asociologistproposedthatthe31societyhasbeenconsumingmodemhumanslittlebylittle.ForfearthatIwouldbecomeavictimoftheconsumersociety.l32hurriedtoabicycleshopinmyneighborhood.33theshopkeeperMr-'JohnsonwasScllingmethebicycle,hesaid,"Thisisthebestthingyou34havedone.Lifehabecomehopelessly35_.Abicycleissimple,anditbringstoyouthingsfreshair,sunshincandcxcrcisc."Happyasachild,Igotonthebicycleanheadedoutontothestreets.Aftersometime,I37_attheotherendofthetown.Iwas38thatthissimplevehiclecouldletme39longdistancesinafairlshorttime.Buthow40didIreallygo?SinceIhatedtobe41,IwentbacktoMr.Johnsonandaskedhimto42anodometer(里程表)onmybicycle.Heagreed,but43."Anodometerwithoutaspeedometer(速度计)islikea44withoutaknife."Iadmittedhewasrightandinafewminutes,thetwodevices(装置)were45tothehandlebarsofmybicycle."Whataboutahome"hethenasked."Look,thishomisnoIargerthanamatchboxandhasmany46."Attractedbythesefunctions,Iboughtthehom."Youcan'tleavethebackpart47,"notedMr.Johnson.Hefixedametalboxwithbuttons48theseat,andsaid,"Isthereanythingbetterthanthisovenwhenyoufee49onyourway?Icangiveyouaspecialdiscount."Iwasnotstrongenoughto50theoffer.
"Icongratulateyouoncemore;thisisthebestthingyoucouldhavedone,"said
Mr.Johnsonintheend. A．adult
B．human
C．consumcr
D．bachclor
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