问题
选择题
The police were seeking more information to find out ____ the rich merchant.
A．who was it that killed
B．who it was that killed
C．it was who killed
D．who was it killed
答案
答案：B
题目分析：此处是强调句的特殊疑问句，其结构：特殊疑问词+be it that...,排除C,D,观察题干，find out后接一个宾语从句，从句应使用陈述语序，故选B
点评：注意把握好强调句特殊疑问句的结构形式。