ecomes,becoming;rides,riding;drives,driving;stands,standing;sees,seeing;goes,going;buys,buying;takes,taking;writes,writing;is,being;sings,singing;sits,sitting;gives,giving;begins,beginning;rings,ringing;wins,winning;builds,building;sends,sending;spends,spending; teaches,teaching ;catches,catching ;thinks,thinking; brings,bringing ;throws,throwing ;draws,drawing ;grows,growing ;knows,knowing ;sleeps,sleeping ;wakes,waking ;sells,selling; tells,telling ;falls,falling ;hides,hiding; hangs,hanging; feels,feeling; gets,getting; makes,making; finds,finding; loses,losing ;wears,wearing ;meets,meeting; says,saying; holds,holding ;hears,hearing ;leaves,leaving ;understands,understanding ;needs,needing ;wants,无现在分词 ;surfs,surfing ;watches,watching ;cleans,cleaning; plays,playing; listens,listening ;visits,visiting; finishes,finishing ;lives,living ;dies,dying ;walks,walking; buries,burying ;washes,washing ;stops,stopping ;travels,travelling
写出下列单词的第三人称单数和现在分词