第1个回答 2016-05-28
sit —— sat
throw —— threw
am, is —— was
drink —— drank
draw —— drew
are —— were
sing —— sang
fly ——flew
do —— did
begin —— began
grow —— grew
have, has —— had
swim —— swam
put —— put
may —— might
give —— gave
cut —— cut
can —— could
ring —— rang本回答被网友采纳