[题目要求]
假如你是李明明，遗失了一个本书，请你用英语写一张50字左右的寻物启示，文章中应该包含：
1、书在哪里遗失的;
2、这本书对你很重要;
3、拾到者应该如何和你联系。
[参考范文]
Notice
I lost a book in the big classroom, No. 228 this Sunday. The name of the book is How to improve your English . I borrowed it from the library. So if anyone find this book, please call 612345678. Thank you for your help.
Li MingMing