第1个回答 2011-05-07
have/has -- had,eat--ate, see--saw,am/is--was,are--were, go--went, do--did,take--took,run--ran,lend--lent,sleep--slept,get--got, meet--met, bring--brought, buy--bought, think--thought, say--said, give--gave, put--put,write--wrote,swim--swam,dig--dug,set--set,tell--told,hold--held,beat--beat,learn--learnt