answer: #Person1#'s mom is going to mend and paint the shelves and #Person1# wants to offer help.
documents: #Person1#: What are you going to do, mom?
  #Person2#: I'm going to mend and paint the shelves in your bedroom today.
  #Person1#: Great, anything I can do to help?
  #Person2#: Yes, you can go to the shop and get me a new paintbrush. This one is too old. But before you do that, ask your father what he's done with the knife. I've looked everywhere for it. There was nothing in the toolbox, except this box of nails, which I lost a month ago.
  #Person1#: OK, mom.