An email to your friend asking him to return the book he borrowed form you:

Answer:

To: shujon@gmail.com

Form:alvi@gmail.com

subject: Request to return a book.

Dear Shujon,

How are you? I hope you are getting on well with your studies. What about your preparation for the coming exam? You know my final exam is knocking at the door. So I need to study more and more. You borrowed a book from me last month. This book is very important for both of us. I think you have used it. At this moment, I am studying a topic related to this book. So I need this book badly. I hope you will return me this book as soon as possible.

No more today. Convey my best regards to your parents.

Your friend

    Alvi