英语语法疑惑Thebookontheshelfisnotmine.It'ssomebodyelses'book.本题目说要把elses‘改为else’s能讲下else的用法吗?好像每次都搞不到这样的题目

Question

英语语法疑惑
The book on the shelf is not mine.It's somebody elses' book.
本题目说要把elses‘ 改为 else’s
能讲下else的用法吗?
好像每次都搞不到这样的题目

Answer 1

1.else一般用在复合不定词或疑问词之后,做后置定语.
如：Who else did you see yesterday?
I don't see anything else but a book on the desk.
还有一个固定短语or else = or,意思是“否则”,引导并列句.
如：Hurry up,or else you'll be late.
2.最后就是else的所有格形式了.
1）含有else的代词,其所有格形式一律在else后面直接加's.
如：This book isn't mine.It must be somebody else's (book).
2）如果是who else,其所有格形式两种均可：whose else或who else's.
如：Whose else is this book?
Who else's book is it?