Mybrotheroftentakesthetrain---school
AtoBatCbyDof选哪个?为什么,请详细阐明理由.
2Travellingbyshipis__________thantakingabus.
AalotoffunBmuchfunCalotmorefunDalotmuchfun
3Ittookus____towalktothefactorylastSaturday.
AoneandahalfhourBonehourandahalfhourConehoursandahalfhourDoneandahalfhours