书上有这段话：

I didn't leave home because I was afraid of my father.

该句是个歧义句，有2个意思：

1)=Because I was afraid of my father, I didn't leave home.

2)=I left home, but it wasn't because of my father that I did so.

但是第二句后面that I did so是不是有误呢？did是什么意思？怕=be afraid of为什么不见了?

应如何改正呢？