let,put,catch,teach,bring,think,sit,ring,sink,run答:let ,put ,caught, taught , brought, thought,sat,这个不知道,ran,won,grew,threw,这个也不知道,felt,这个不知道,kept,swept
talk的过去式答:不规则的 注:不规则动词的过去式变化规律性不强,须多加记忆.go - went,make - made,get - got ,buy - bought ,come - came ,fly-flew ,is/am-was,are-were ,see-saw,bring-brought,do-did,teach-taught,think-thought,say-said,sit-sat.read-read,spend-spent,eat-ate,give-gave,sit...