Saw or Recognized One who often watches TV films will easily feel that everything that happens in a film could happen to him one way or the other.With only a little imagination, every man in the street becomes a thief, a spy or a murderer.Jane had been watching a spy film at a friend's house.In the film a young woman was followed and murdered in the end.She felt a little frightened walking to the station.She took the train back to the center of the city.There were a lot of people traveling, so she felt much safer. A man sitting opposite her, reading a newspaper, looked up.She thought nothing of it until she saw him staring at her.Remembering the film and feeling very uncomfortable, she got out of the train and went to the bus stop.But the man got on the same bus.So the man was following her.As long as she had been with other people, she wasn't afraid, but when she got off the bus, the streets were almost empty.She walked as quickly as she could.She could hear footsteps following her but she didn't dare to look back.After what seemed to have been hours, only a few minutes in fact, she reached the front door.She felt for her keys, but wasunable to find them, because she was so frightened.The footsteps stopped behind her.She felt a hand on her shoulder.Instead of feeling hands round her neck, however, she heard a pleasant voice, "I apologize if I frightened you.I'm your new neighbour.I thought I 【recognized】（why can't say"saw"instead of ） you in the train, but wasn't quite sure."