Question

The buses, ____were already full, were surrounded by an angry crowd.

A．most of them	B．most of which
C．which most	D．that most

Answer 1

B

解析试题分析：考查引导定语从句关系词与介词的用法区别。句意：那些大部分已经满的公共汽车被一群愤怒的人包围着。先行词是the buses,后面要用关系词which来指代，表示大部分就用most of which，C 和D
结构不正确；如果空格后面与主句并列，就可以考虑；故B正确。
考点：考查引导定语从句关系词与介词的用法区别。