阅读理解。Found Is this your book? Please call John at 295-2456. Found Is that your black backpack? Pleas

阅读上面的寻物与招领启事，完成句子。
1. You lost your book. You call John at _______.
2. You lost _______. You call Mary at 212-0532.
3. You lost a set of keys. You call _______ at _______.
4. You found a notebook. You call _______ at 235-9874.
5. You found a black and white cat. You call _______ at _______.