15.IamafraidIcan'tgetinallthewheatwithinsuchashorttime___tohelpmetomorrow.a.unlessyouwillcomeb.untilyoucomec.untilyouarecomingd.untilyouwillcome20.He___ esnotdare22.Thepassengerswererobbed____ ay29.Hisfamily___muchlargerthanmine,andhisfamily____ eis
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15.b20.C22.A29.Ctuntil直到...才、unless除非...都用一般现在时态表将来20.dare作情态动词时用于否定或疑问句中 b.ofsth.此句是被动语态29.family集合名词,表整体概念谓语用单三形式,表个体概念谓语用复数即原形动词第一空表整个家庭,第二空表全体成员