who was the book weitten by?和whom was the book written by?有什么区别?

问题描述:

who was the book weitten by?和whom was the book written by?有什么区别?

第一个是说这本书是谁写的,第二个是说这本书写的是谁
两个有明显的差别哦

没有区别.
如果by在句子开头,就应该是:By whoM was the book written