1.   a person at the door?  

2.   a problem with the machine? 

3.   vending machines down the hall? 

4.   a pay phone near here? 

5.   too many people? 

6.   any milk left? 

7.   any mistakes in this text? 

8.   anything I can do to help you? 

9.   books on the desk? 

10.   a restaurant within the hotel?