answer: #Person1# borrows #Person2#'s computer to type the paper.
documents: #Person1#: Excuse me , can I use your computer to type my paper? 
  #Person2#: No problem. 
  #Person1#: I am afraid I can't finish typing it this afternoon. When will you use it tonight? 
  #Person2#: Oh, Never mind, I finished my paper. So you can use it tonight . 
  #Person1#: Thanks a lot!