问题描述： by who was the book written 1个回答 分类：英语 2014-12-06 问题解答： 我来补答 不可以去掉,by是表示由谁写的,你可以把语序倒一下这样理the book was written by whoe.g.Who wrote this book?The book was written by Dan Brown. 展开全文阅读
