问题补充：
---When will the new chairperson arrive? ---.
A. Until next Friday
B. Not until next Friday
C. After a few days
D. For a few days
答案：
A. Until next Friday
(答案→)B. Not until next Friday
C. After a few days
D. For a few days
解析：Until next Friday到下周五为止；Not until next Friday直到下周五才；After a few days 说法有误，after一般接时间点。For a few days好几天。句意：新主席什么时候到达？结合语境可知选B。
