i like the book!do you know who is it written___?

题目

i like the book!do you know who is it written___?
I'm not___.maybe Dan Brown wrote it.
I don't believe it.Aren't you a___of Harry Portter which is written by J.KRowling?
Who ______ ______told you about that I'm a basketball fan.I don't like reading at all.

答案

1.by 做介词（谁写的）
2.sure 确定
3.reader 读者
4.once have 曾经告诉