______ will be in charge of the meeting has not been decided yet. A. What B. Which C. That D. Who

______ will be in charge of the meeting has not been decided yet.
A. What B. Which C. That D. Who
【答案】D
【解析】
【详解】考查名词性从句。句意:将由谁来主持会议还没有决定。分析句子结构可知,空处在此引导主语从句,且在从句中作主语,表示"谁",故用Who。故选D。
【点睛】名词性从句关键在于三点：一、找准从句在主句中充当的成分即分出是名词性从句的主语句、宾语从句、表语从句还是同位语从句。二、连接词从句中充当的成分（主、宾、定或状语或不做任何成分）三、弄清楚每个连接词的意义。此外还要注意，近年来高考对于名词性从句的考查多从名词性从句的语序和连接词的用法区别上考查。