初中英语求解答为什么.---Oh,so many people are standing outside the hal

初中英语求解答为什么.---Oh,so many people are standing outside the hall.___________will the m
.---Oh,so many people are standing outside the hall.___________will the meeting begin?
--- _________eight o’clock.
A.How soon,Not until B.How long,Not until
C.How soon,Until D.How long,Until