Hardly had they arrived at the airport ___the plane started to leave.

问题描述:

Hardly had they arrived at the airport ___the plane started to leave.
A.than
B.then
C.until
D.when
选哪个,为什么呢?
参考答案是选C,我觉得选D的朋友说的也很有道理的。那到底是他们赶上了飞机没有啊?

C HARDLY 表示否定,相当于NOT ……UNTIL