Completethefollowingsentenceswiththeproperformsofthewordsgiveninbrackets.1.Theyoungmanshouldhavehada______future,buthemadesomeseriousmistakesinhisthirtiesandwasarrested.(promise)2.Thelittleboywasoftennervousint

　　Completethefollowingsentenceswiththeproperformsofthewordsgiveninbrackets.

　　1.Theyoungmanshouldhavehada______future,buthemadesomeseriousmistakesinhisthirtiesandwasarrested.(promise)

　　2.Thelittleboywasoftennervousinthe______ofhisteacherbecausehehadbeencriticizedtoomuchbytheteacherafterhefailedintheexam.(present)

　　3.Thehumorousprofessorsometimestellssome______storiestohisstudentsafterclass.(amused)

　　4.Afterwewaitedattheairportfor______40minutes,theplanefinallyarrived,toourjoy.(approximate)

　　5.WhenMr.Zhanglostallhismoneyintheeconomiccrisis,allhisfriendsleft,______tohispainandhardships.(difference)

　　6.Itis______thatMr.Leewasnotofferedthejobheappliedforthoughhegotthehighestscoresintheexamandjobinterview.(fair)

　　7.TheOlympicremainsthemostpureexampleof______thoughmanykindsofsportshavebecomeprofessional,withcloserelationshipswithbusinesses.(compete)

　　8.Thoseathleteswhouseperformance-enhancingdrugsneverexperiencethegloryofwinningthroughthevirtuesofhardworkand______.(determine)

　　9.Carlsethismindontrackandthatwasit.Hisyearsofpracticeandquietself-confidencesetthestagefora______Olympictrackandfieldcareer.(phenomenon)

　　10.In1985,however,acloudappearedonCarlLewis’horizon:CanadiansprinterBenJohnson,whobegantobeatLewis_______inthe100-meterdash.(consistence)

　　11.ThecrowdheldtheirbreathastheywatchedJohnsonbuildanearlyleadwithhis______startwonderingifLewis’strongfinishwouldbeenoughtoovercomehim.(explode)

　　12.Withhiscontinuedhardworkandhonest______insprintingandlongjump,LewisprovedtotheworldthattheOlympicspiritwasnotdead.(participate)

　　13.LewishaddemonstratedthathehadmanagedtowinhonestlyandhisloveforthegamestrulysetanewstandardforOlympic______.(excellent)

　　14.Andin1992,LewiscompetedinhisthirdOlympicswinningtwomoregoldmedalsinthelongjumpand4x100meterrelaywitha______fromthepublicthatwasfitforaking.(receive)

　　15.TheamazingCarlLewishaddemonstratedthathewas______anyathl