有关强调句的英语题

问题描述:

有关强调句的英语题
it___we had stayed together for a couple of weeks ___ i found we had a lot in common
A was until; when
B was until; that
C wasn't until; when
D wasn't until ; that
求详解

选D,not...until...直到.才.,而且这个句子又是个强调句,后面用that.