Question

Whose is the book?的语法错误在哪

Answer 1

首先[Whose is the book?] 没有错误。

whose可以做限定词，比如[whose book]; 也可以做疑问代词，此时[whose]本身就等于[whose book]。
词典例句：[as a question pronoun: Whose is this jacket?]

所以这句话两种问法都可以：
Whose is the book?（whose代词）
Whose book is this? （whose限定词，this代词）

甚至也可以这样：
Whose book is this book? （whose和this都作限定词）
Whose is this? （whose和this都作代词）

Answer 2

那你就要把whose
content
is
"protect
the
environment"
这个定语从句放在
the
speech后面，定语从句，尤其是限定性定语从句必须紧紧跟在要修饰的先行词后面，否则就表意不清

Answer 3

无语法错误，请讲原题给我看

Answer 4

没错

Answer 5

is应放在最后