if only i ____ now about his coming,i would hace met him at the station.1.would know2.had known3.have known4.kewn

Question

if only i ____ now about his coming,i would hace met him at the station.
1.would know
2.had known
3.have known
4.kewn

Answer 1

if only 要用虚拟语气,知道吧?
翻译：要是我知道他来,我就会到车站去接他了.
对过去的事情进行假设,实际上过去他不知道他要来,也没有去接他.
对过去的事情进行假设,从句用had done,主句用would have done.
根据你的主句中用的是would have met 所以对应的用had known