the question is eas to answer.为什么不同to be answered?

问题描述:

the question is eas to answer.为什么不同to be answered?

这里sth. + be + a. + to do
可以认为是固定的用法,记住这种形式不用被动就行了

当前面主语与后面的谓语动词有动宾关系时,就可以不用被动,如:
the book is interesting to read.