be,cost,hit,hurt,let,put,read,set,shut,do,go,see,draw,grow,blow,fly,know,show,throw,teach,catch,bring,buy,fight,think,dig,find,have,hear,hold,keep,hang,leave,make,pay,say,sell,sit,sleep,sweep,stand,understand,win,drink,ring,sing,begin,run,swim,become,come,beat,bite,break,choose,eat,drive,fall,freeze,give,hide,ride,rise,speak,steal,take,write,build,burn,lend,lose,send,small,spend,get,forget,tear,wear,fall,feed,feel 的present perfect tense!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!