The police were seeking more information to find out

The police were seeking more information to find out _______ the rich man.

who was it that killed

who it was that killed

it was who killed

who was it killed

答案及解析：本题考查特殊疑问句的一般陈述语序与强调句B选项，句意为“警察正在搜集更多的信息来调查是谁杀死了这个富人”。根据强调句结构应为it was who that killed，再调整语序为who it was that killed。综上，B选项正确。A选项，不符合强调句的语序，故排除。C选项，不符合强调句的语序，故排除。D选项，与强调句的结构不符，故排除。故正确答案为B项。