The exam was much more difficult than we ______

问题描述:

The exam was much more difficult than we ______
A.expected
B.had exepected
选哪个,为什么,

B.had exepected
文中说was much more difficult 所以考试已经是结束的了
那我们exepected这个动作肯定是在考试之前的啦
所以是过去的过去,用过去完成时