Clay is 13 years old, and he lives in Miami, the United States. On the morning of Feb.23, when Clay is waiting for school bus, a man kidnaps  him.The man takes him to a tree. He puts a stock in Clay's mouth. Then he asks for money from Clay's family.    Clay is very scared . But he remembers there is a safety pin  in his pocket. He takes out the pin and cuts through the rope . Finally he gets free. Clay calls his mother with a farmer's cell phone. Soon the police comes and Clay is safe. The police thinks highly of  Clay. "This man kidnaps the wrong boy," Charly Wells, a policeman says. "This boy notices things. And he's very brave ." Clay uses  _      to help him run away.
a rope a safety pin a gun a knife