Oneday,afatherandhissonwerewalkingwiththeirhorse.Anoldm...
问题详情：Oneday,afatherandhissonwerewalkingwiththeirhorse.Anoldmansawthemandsaid,“You 56 (suppose)torideahorse,nottowalkit!”Thefatherthenputhissononthehorse. Soontheypassedagroupofpeople, 57 sai...