he healthy lifestyle helps his get good grades.中的help用不用加s 和his和him 要用那个

问题描述:

he healthy lifestyle helps his get good grades.中的help用不用加s 和his和him 要用那个
him和his有神马不同

him 是he的宾格形式
his是he的人称代词形式.
正确的应该是
His healty lifestyle helps him get good grades.