Wasn't it until Michael ran into me( )he recognized I was once his partner?

问题描述:

Wasn't it until Michael ran into me( )he recognized I was once his partner?
A.then B.when C.which D.that
该题正确答案应选D,说明其他几项为什么不对,

这是一个强调语气的问句形式,如果是正常语序,应为It was not untill Michael ran into me that he recognized I was once his partner.(直到Michael撞上我他才认出我曾是他的伙伴)
其中It was ...that...是强调句型,not untill Michael ran into me是被强调部分.这里只是把正常语序变成问句的形式.
这个题只能选D是因为强调句型it is(was)...that...是个固定搭配,与not untill没有关系.
这句话的意思:是不是直到Michael撞上我他才认出来我曾是他的伙伴?