interested,excited,worried,hold,afford,mud,speed,underground,blood,beyond,crowded,mind,depend,mad,avoid,land,yard,wild,kind,road,proud,around,round,found,tired,should,load,record,band,Madrid,understand,stand,spend,island,background,good,postcard,weekend,afraid,used,sand,could,gold,old,mood,loud,guard,feed,need,lead,skateboard,husband,second,behind,instead,hundred,salad,field, 　　注：过去式,过去分词的规则变化-ed,如：study-studied 　　太多以-d结尾的单词了,不知道有没有你想要的