1、语法专题复习方略第五讲介词Ⅰ.用适当的介词填空1.Fredenteredwithoutknockingand,veryoutofbreath,sank achair.答案:into2.Ifyoureallyhavetoleaveduringthemeeting,you'dbetterleave thebackdoor.答案:by3.Agreatmanshowshisgreatness thewayhetreatslittlemen.答案:by4.Youhavenoideahowshefinishedtherelayrace h