so far引导什么从句

I've only read a little of the book so far.

这本书我才读了一小部分。

That's the truth, in so far as I know it.

就我所知，那是真实情况。

This brought the total number of accidents so far this year to 113.

这使得今年迄今为止发生事故的总数达到113起。

They have not had a win so far this season.

他们这一赛季迄今还没有赢过一场。

This is the sum of my achievements so far.

这就是我目前的全部成就。