回答：英语中有三种所有格,一种是's,主要用于有生命的名词；一种是of,主要用于无生命的名词；还有一种是of+'s,第三种叫作双重所有格,主要用于强调.
如：
He is my sister's friend.
The cover of the book is blue.
That daughter of our teacher's is really lovely.
欢迎提问,
回答：英语中有三种所有格,一种是's,主要用于有生命的名词；一种是of,主要用于无生命的名词；还有一种是of+'s,第三种叫作双重所有格,主要用于强调.
如：
He is my sister's friend.
The cover of the book is blue.
That daughter of our teacher's is really lovely.
欢迎提问,