第1个回答 2013-07-11
am/is-was are-were become-became begin-began bring-brought buy-bought catch-caught come-came do-did eat-ate feel-felt fing-found get-got give-gave go-went grow-grew have/has-had hear-heard know-knew make-made put-put run-ran say-said see-saw sit-sat stand-stood take-took teach-taught tell-tol write-wrote