前面一个句子,后面一个定语从句,most of.先行词在后面的句子做主语,是填who?whom?

题目

前面一个句子,后面一个定语从句,most of.先行词在后面的句子做主语,是填who?whom?
There are 30 tourists on the bus,most of什么are from Germany.who还是whom?急
他们说的谁对啊 救命啊

答案

这里 作 of 的宾语,用 whom ,most of whom 整个作主语,就好比 most of them are from ...