I am sorry teacher. As a result of their careless not the book to take home. I know that teachers and students on the impact of bad. Although this is not my intention, but I also have the responsibility to their own. Do not be angry I hope the teachers. Life of your poor health. I have a deep understanding of their own mistakes. And no guarantee the next time. I hope that the teacher be able to forgive. And now back to my book. Thanks