Determinednottofallb的精選

問題詳情： Determinednottofallbehind,Alexnowspends________asheusedtoonphysics,hisweakestsubject.A.twiceasmuchtime   B.astwicemuchtimeC.twicemuchtimeas   D.astwicetimemuch【回答】A知識點：固定句型題...