One day a woman got into her car and started driving home after work. Suddenly, she saw a yellow car behind her. __21__ was a man. When she turned left, the yellow car turned left. When she turned right, the yellow car turned right, __22__. When she stopped at the traffic lights, the yellow car stopped behind her. The woman was afraid, so she drove quickly to the police station. She was very __23__ when she found the car stopped behind her. At that time, a young man was standing outside the poli