【1.johnisn'tadiligentstudent,foritisthethirdtimehehasbeenlate,__()A.wasn'tBhasn'titCisn'titDhadn'the2.hedoesn'tdriveyet,buthewants__()atheowncarbthecarofhisowncanowncardacarofhisown3.iftheirtrain】

　　1.johnisn'tadiligentstudent,foritisthethirdtimehehasbeenlate,__()

　　A.wasn'tBhasn'titCisn'titDhadn'the

　　2.hedoesn'tdriveyet,buthewants__()

　　atheowncarbthecarofhisowncanowncardacarofhisown

　　3.iftheirtrainarrives__notmakeittothetheaterontime()

　　alately,wewillblate,wewouldcmorelater,wewilldlate,wewill

　　该选哪个．为什么,最好详细点．讲解相关的语法知识．其中第三条是考虚拟语气吗?