answer: #Person2# tells #Person1# that it is time for cleaning their dormitories because they are in a mess and they clean it every three months.
documents: #Person1#: Would you like to go skating with me this afternoon?
  #Person2#: Oh, I'd love to. But we're going to clean our dormitory. I can't be absent.
  #Person1#: Maybe another time. People say that boys'dormitories are in a mess, is it true?
  #Person2#: In fact, our dormitory is much worse than they can be described.
  #Person1#: It's hard for me to imagine. How can you stand that?
  #Person2#: You'll get used to it gradually.
  #Person1#: Oh my God, don't you know that such living environment is not healthy?
  #Person2#: Yes, we do. That's why we have a cleaning every three months.
  #Person1#: Three months? Incredible!