WithAmerica’sMidtermElectionsover,andanewCommanderinChiefabouttostep（61）soon,someAmericansarea（62）nervousaboutthenation’sfuture.Butothersfeelsecure,（63）thatthemantheyconsiderthemostpowerfulpersonintheworldisn’t（64）anywhere.Justwhoisthisbehindthescenesguythattheythink（65）morepowerthanGeorgeW.Bushever（66）?He’sAlanGreenspan,a（67）experteconomistwhoheadstheFederalReserve,commonly（68）astheFeGreenspanisa（69）NewYorker.Hisfirstfocuswasmusic:He（70）NewYork’sJulliardSchoolandtouredthecountry71ayearintheearly1940s,playingintheHenryJeromeswingbanIfnothing（72）,friendsbelieve,thisexperienceofUStravelgavehimtheabilitytoconnectdispassionateeconomictheories（73）theindividualstheyaffect.“Themostoutstandingthing（74）himisheknowstheAmericaneconomy…,”（75）friendHerbertStein,aneconomist.Aswing（76）economicscarriedhimstraightinto（77）Republicanpolitics.HeadvisedRichardNixoninhis1968（78）,andservedbrieflyintheBureauoftheBudget.Sevenyearslater,hereturnedtogovernmentservice,replacingMr.Stein（79）chairoftheCouncilofEconomicAdvisersinthefinaldaysoftheNixonpresidency.HeagreedonlyafterbeingassuredthatVicePresidentFordwould（80）him.74.（）

A. of
B. about
C. for
D. on