we had hardly arrived there ( )it began to rainA.since B.before C.than D.when

we had hardly arrived there ( )it began to rainA.since B.before C.than D.when
we had hardly arrived there ( )it began to rain
A.since B.before C.than D.when

we had hardly arrived there ( )it began to rainA.since B.before C.than D.when
B
过去的过去已完成的动作
加油!不明白再问!

A，
表原因。

D
hardly...when... ”刚...就...“ ”一....就....“

选D
我们刚到就开始下雨了。