单选题My boss left word wi

问题补充：

单选题Mybossleftwordwithmyassistance______hewouldholdameetingatsixintheeveningforpersonnelmatters.A.whoB.asC.whichD.that

答案：

D解析he would hold a meeting at six in the evening for personnel matters.是同位语从句,解释说明名词word的具体内容, that无词义,在句中不充当成分。