To pay for his education, a poor boy used to sell goods from door to door. One day, the young boy was really _________ but had no money to buy any food. He decided to _________ something to eat when he knocked on the front door of the next house.

A beautiful young woman opened the door, and the boy lost his nerve(勇气). He simply asked for a drink of water. The young woman _________ him a glass of milk. After drinking the milk, the boy asked her how much he had to give, _________ she simply smiled and her mother had taught her to be kind to others and never expect _________ in return.

The young boy left the woman’s home with a heart full of _________ to go on with his education and continue working hard.

Years later, in a big city, famous surgeon(外科医生) Dr Howard Kelly was called to _________ a woman who was suffering from a rare(罕见的) disease. Dr. Kelly realized that she was the woman who had given him the glass of milk many years ago. The doctor _________ the woman with the best care. After a long difficult treatment, the woman was _________ ready to go home. The woman was worried about the huge bill. However, when she received the bill. she found that Dr. Kelly had paid the bill himself and written a small __________ for her.

The note simply stated: Paid in full with a glass of milk.

A

Agatha Christie was an English detective story writer. In her detective stories, she created several detectives. The two most famous of them are Miss Marple and Hercule Poirot. Here is a list of some stories written by Agatha Christie.