Exam!!!

This week is middle exam week. There are Calculus, English, and Logic design. Three days ago, my classmate of grade three borrowed the book with me, and it just is the Calculus book. I guess that he must forgot to return the book to me. Oh no, this Thursday has the test of Calculus. His cellphone's number has been changed, so nobody known how to find him. What can I do now? I do not want to like him that have the Calculus class again.