1.   someone at the door.  

2.   a problem with the machine. 

3.   vending machines down the hall. 

4.   a pay phone over there. 

5.   too many people. 

6.   no coffee left. 

7.   no tickets left. 

8.   few things you can do. 

9.   pencils on the desk. 

10.   a taxi waiting outside.