This book is not mine; it belongs to my friend.
This book is not mine; it belongs to my friend.
This book is not mine; it belongs to my friend.
He is not a teacher; he is a doctor.
He is not a teacher; he is a doctor.
He is not a teacher; he is a doctor.
The answer you are looking for is not in this book; you should look elsewhere.
The answer you are looking for is not in this book; you should look elsewhere.
The answer you are looking for is not in this book; you should look elsewhere.