1.ProfessorSmithbecamethefirstone___theNobelPrizeinmedicineafterdeathinhistory.A.awardedB.beingawardedC.tobeawardedD.tohavebeenawarded为什么是D?C不够恰当还是不正确?2.Thenine-seatschoolbus,overloadedwith64

　　1.ProfessorSmithbecamethefirstone___theNobelPrizeinmedicineafterdeathinhistory.

　　A.awardedB.beingawardedC.tobeawardedD.tohavebeenawarded

　　为什么是D?C不够恰当还是不正确?

　　2.Thenine-seatschoolbus,overloadedwith64people,crashedwithacoaltruck,___21deathsandanother43injured.

　　A.causedB.causingC.tocauseD.havingcaused

　　为什么选B而不是A?这里到底哪个是谓语啊@_@晕了

　　3.OnlywhentheEuropeancountries'financialsystembrokedown___totakemeasurestodealwiththoseproblems.

　　A.didtheydecideB.theydecidedC.theyhaddecidedD.hadtheydecided

　　看到Only开头又接着状语从句我就悲剧地把正确答案B给排除了……为啥呀o(╥﹏╥)o