My boss left word with my assistance he would hold a meeting at six in the evening for personnel matters.
A. who
B. as
C. which
D. that
网友回答
A. who
B. as
C. which
(答案→)D. that
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。