she helped him _______ his father.

she helped him _______ his father. I helped him find his father.为什么find不用过去式? he was lost and I helped him find his father helped him with his math i helped him find his father中的find为什么呢是原型 he was lost and i helped him find his father是什么意思 He was lost and I helped him find his father 中的lost是什么词性 He was lost ang i helped him find his father 中lost是什么词性 the little boy was lost and i helped him（）his father.A findi She porgot his _______ ______ .she can't call him His father _______ (惩罚) him because he failed in the exam. I helped him to find her Father改为同一句