阅读与回答问题（共5小题；每小题2分，满分10分）
请认真阅读下面短文，并根据短文内容回答问题。
One day, a poor boy who was selling things door to door found that he only had a cent (美分)left. He was so hungry that he decided to ask for a meal at the next house.However, he just asked for a glass of water when a beautiful young woman opened the door. She thought he looked hungry, so she brought him a large glass of milk. He drank it slowly, and then asked, "How much do I owe (欠) you?"
"You don't owe me anything." she replied, "Mother has taught me never to accept pay for a kindness."
Years later the woman needed an operation (手术). The local doctors could do nothing. They finally sent her to a big city. Dr. Milton, who was famous, was called in for the consultation (会诊). When he heard the name of the town she came from, he went to see her. He recognized (认出) her at once. At the same time, he made his decision to try his best to save her life.
After hard work, the operation was successful. Dr. Milton asked the nurse to pass the final bill to him. He wrote something on the side. The bill was sent to the patient's room. She was afraid to open it because she thought it would cost all her money. To her surprise, she saw these words written by Dr. Milton:
"Paid in full with a glass of milk."
Tears ran out of her eyes as she said silently, "Thank you. Love has spread through human hearts and hands."
Answer the following questions according to what you read.
What was the boy doing when he only had a cent left?
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What did the boy ask for from the young woman?
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What did Dr. Milton decide to do when he recognized the woman?
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How did the woman feel when she saw the words written by Dr. Milton?
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The woman had to pay the bill with all her money, didn't she?