i wish i __(know)how to solve this problem.

问题描述:

i wish i __(know)how to solve this problem.

我希望我知道该怎样解决、或解答这个问题

i wish i _would know_(know)how to solve this problem.

正确答案是 knew ,I wish 说明是没有实现或很难实现的事情,所以属于虚拟语气(对过去事情的虚拟).