There are fifty students in the class;half of ( )are from the US.A them B which C whom D those

问题描述:

There are fifty students in the class;half of ( )are from the US.A them B which C whom D those

A我觉得C其实也能说通啊 为什么是A啊?whom是“who”的宾格 翻译为某人句意不符