AmEriCAn CitiEs ArE (31) othEr CitiEs ArounD thE worlD、in EvEry Country, CitiEs rEFlECt thE (32) oF thE CulturE. CitiEs ContAin thE vEry (33) AspECt oF A soCiEty: opportunitiEs For EDuCAtion, EmploymEnt, AnD EntErtAinmEnt. thEy Also ContAin thE vEry worst pArts oF A soCiEty: violEnt CrimE, rACiAl ConFliCt, AnD povErty.AmEriCAn CitiEs ArE ChAnging, just (34) AmEriCAn soCiEty. AFtEr worlD wAr ii, thE populAtion oF (35) lArgEAmEriCAn CitiEs DECrEAsED; howEvEr, thE populAtion in mAny sunBElt CitiEs (36) losAngElEs AnD houston ArE CitiEs (37) populAtion inCrEAsED、 thEsE populAtion shiFts to AnD From thE City (38) thE ChAnging vAluEs oFAmEriCAn soCiEty. During this timE, in thE (39) 1940s AnD EArly 1950s, City rEsiDEnts BECAmE wEAlthiEr, morE prospErous. thEy hAD morE ChilDrEn. thEy nEEDED morE (40) thEy movED out thEir ApArtmEnts in thE City (41) thEir own homEs. thEy Bought housEs in thE (42) , ArEAs nEAr A City whErE pEoplE livE. thEsE ArE ArEAs (43) mAny oFFiCEs or FACtoriEs.During thE 1950s thEAmEriCAn" DrEAm" wAs to hAvE A housE on thE outskirts. now things ArE ChAnging. thE ChilDrEn oF thE pEoplE who lEFt thE CitiEs in thE 1950s ArE now (44) . thEy, (45) thEir pArEnts, wAnt to livE in thE CitiEs. (46) ContinuE to movE to CitiEs in thE sunBElt.CitiEs ArE (47) AnD thE populAtion is inCrEAsing in suCh stAtEs As tExAs, FloriDA, AnDCAliForni A、 othErs ArE moving to morE (48) CitiEs oF thE northEAst AnD miDwEst, suCh AsBoston,BAltimorE AnDChiCAgo. mAny young proFEssionAls, DoCtors, lAwyErs, AnD ExECutivEs ArE moving BACk into thE City. thEy prEFEr thE City (49) thE suBurBs BECAusE thEir joBs ArE thErE; thEy ArE AFrAiD oF thE FuEl shortAgE; or thEy just (50) thE ExCitEmEnt AnD opportunitiEs whiCh thE City oFFErs. A、nEw ClAss is moving into thE CitiEs--A wEAlthiEr, morE moBilE ClAss. A、outskirts B.Downtown C.DistriCts D.suBurBs