单选题The police were seeking&n

问题补充：

单选题Thepolicewereseekingmoreinformationtofindout______therichmerchant.A.who was it that killedB.who it was that killedC.it was who killedD.who was it killed

答案：

B解析主要测试宾语从句。强调句中的疑问词提前。译文：警方正在搜索更多的信息目的是找出究竟是谁某杀了那位富有的商人。