问题补充：
you get there, please be there in time, because is late won be admitted into the meeting hall.
A. No matter how; no matter who
B. However; no matter who
C. No matter how; whomever
D. However; whoever
答案：
A. No matter how; no matter who
B. However; no matter who
C. No matter how; whomever
(答案→)D. However; whoever
解析：句意,无论你怎样到那儿,请按时到,因为无论谁迟到了都不许进入会议大厅.however可以引导名词性从句和让步状语从句，而no matter 只能引导让步状语从句且从句的引导词只能是疑问词，.you get there为名词性从句,下文副词为从句主语,故只能用whoever,故选D.
