On this very spot is where I first met my wife.
请问这个句子对吗?怎么又是介词短语作主语?是倒装句吗?也不像啊!
网友的句子没有问题。可以看作是倒装句:
=Where I first met my wife is on this very spot.
这个where可以看作是融合型关系代词,相当于 the place where。