the bus ()was already full,was surrounded by an angry crowd.

问题描述:

the bus ()was already full,was surrounded by an angry crowd.
a:which of most b:most of which c:which of the most d:most of that 为什么

句子还原:most of the bus was already full
所以呢~of 是不能省略的,bus用关系词which代替,指代物
选B