题目内容：

that there is?是定语从句吗
This is the best book _____ on the subject.
A.which there is B.that there is C.which is D.what is
本题选择B是没有什么争议
因为出现best最高级
但请问这是什么类型的从句
如果将本句还原的话应该什么样子,如何翻译?
如果可以写成This is the best book where the book is on the subject.
那此句可以认为是定语从句吗？

优质解答

This is the best book that there is on the subject.
This is the best book where the book is on the subject.
where = that there,这里用that there因为最高级的问题.
如果硬要还原,就是：this book is No.1 on this subject.No.1就是where了.