the girl had hardly rung the bell ( ) the door was opened suddenly,and her friend rushedout to.

题目

the girl had hardly rung the bell ( ) the door was opened suddenly,and her friend rushedout to.
A before
B UNTIL
C as
D since
! 为什么不用B T T

答案

意思就不符合啊,既然门是突然打开的,就是说明女孩不知道门会开,那么怎么会用until,直到呢,按门铃直到门突然打开,那样和suddenly有冲突,不符合语意.