I didn't doubt what he said.I didn't expect him( )

问题描述:

I didn't doubt what he said.I didn't expect him( )
1.to mistake 2.to be mistaken 3.to have mistaken
为什么选2,给15.

2.be mistaken的意思就是犯错误,习惯用法.
3把mistake当做一个主动的动词来用是不对的.
还有问题再hi我!:)