任务型阅读：
John Smith was an old porter. He worked at the station. Every day he was busy carrying heavy things for the people. He was careful with his work. He was kind to everyone. He was always
ready to help others.One morning he stood in the station. He was waiting for the train. Just then he saw a man running towards the trains with a big bag in his hand.
“No train is starting. Why is he in such a hurry?” the old man thought to himself. He went up to the man and    asked, “May I help you?” As soon as the man saw the porter, he stopped running.
“Can I catch the 10:35 train to London?” the man asked. He looked worried. The old porter looked at him for a few seconds and said, “Well, sir. I’d like to help you, but I can’t answer your question because I don’t know how fast you can run.”  Then he explained to the man, “The 10:35 train to London left five  minutes ago. Can you run fast enough to catch it?”
What was John’s job?
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Who did he see when John Smith was waiting for the train?
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Where do you think the man with a big bag was going?
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What time was it when the man got to the station?
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The man didn’t catch the 10:35 train to London, did he?