单选题 An eleven-year-old boy in a small town wanted to be a train-driver. But the boy was born without arms. He was taught by his uncle to use his feet as "hands". He couldn't go to school so he spent all his time watching trains coming and going because he lived near the station. How he wished he could be a train-driver! One day he saw an empty train and he climbed in. He started it with his feet easily. Soon the train was travelling at forty kilometers an hour. Nobody could see the boy in the train and stop the train. The train reached a small station a little way away from the town and then the boy drove it back. When he was near the town, a worker caught up with the train and stopped it. At first he was very angry, but when he saw the boy, he was so surprised that he hardly thought it was true. "I like trains,' said the boy quietly.