answer: #Person2# tells #Person1# Sally is single because she devotes much time to her career.
documents: #Person1#: Do you know Sally? 
  #Person2#: Sally. She is a bachelor girl. She is an excellent designer. Many of the company's advertisements are her child trains. 
  #Person1#: Why is she still single? She must have a face that would stop clock. 
  #Person2#: Oh, quite the other way round. She is a knock-out. She devotes much of her time to her career.