动词过去式的不规则变化
give→gave;wake→woke;fall→fell;forget→forgot;drive→drove;drink→drank;
rise→rose;ride→rode;run→ran;get→got;ring→rang;lose→lost;stick→stuck;
send→sent;lend→lent;shine→shone;sing→sang;win→won;write→wrote;
spend→spent;know→knew;swim→swam;throw→threw;come→came;
draw→drew;become→became;hold→held;smell→smelt;grow→grew;
begin→began;build→built;make→made。