Not until he got off the bus_____that he had got his wallet stolen.A he found B did he find C he had found D had he found.理由能说充分点吗?

Not until he got off the bus_____that he had got his wallet stolen.
A he found B did he find C he had found D had he found.理由能说充分点吗?

选B did he find
not until."直到.才."的句型
译文：他上车以后才发现钱包被偷了.
以否定词开头的英语句子,后面一定要用到装：即把助动词提前+动词
例如,Hardly could he be able to finish it.他几乎完不成这个.
None of this sort of thing have I met before.我以前从来没有碰见过这类事情.

not until 提前主句用部分倒装，即把助动词提前