句子的最佳答案。

A

      A gentleman once advertised（登广告）for a boy to help him in his office, and nearly fifty persons asked for the place. Out of the whole number he in a short time chose one, and sent all the other boys away.

    “I should like to know," said a friend, "on what ground you chose that boy. He didn't even have a recommendation（推荐信）with him.”

    “You are mistaken,”said the gentleman, "he had a great many: —

    “He made his shoes clean when he came in, and closed the door after him; showing that he was orderly（井然有序的）．

      "He gave his seat to the disabled old man; showing that he was        

      "He took off his cap when he came in, and answered my questions quickly and respectfully c恭敬地); showing that he was polite.

       "He lifted up the book which I had purposely (故意地) laid on the floor, and put it on the table, while all the others stepped over it or pushed it aside; showing that he was careful.

      "And he waited quietly for his turn, instead of pushing the others aside; showing that he was modest (谦逊的 ) .

      "When I talked with him, I noticed that his clothes were carefully brushed, his hair in nice order, and his teeth as white as milk. When he wrote his name, I noticed that his fingernails were clean; instead of having some untidy personal habits.

     "Don't you call these things letters of recommendation? I do; and the things that I can discover a boy by using my eyes for ten minutes, is worth more than all the fine letters that he can bring.”

    Mike teaches a very basic programming (编程) course to a group of students. They are all very interested in computers.

    One day, Mike told his students to write a short program on their computers. After writing it, they only needed to type "R", "U" and "N" and press "enter" to see the program run.

    Soon, a student sitting in the back of the classroom put up her hand. She said, "I did what you said, but it didn't work." Mike knew that students sometimes make mistakes when typing. So he suggested that the student retype (重新输入) "R", "U" and "N".

    A few seconds later, the student's hand went up again. "It still doesn't work," she said. This time. Mike went to her to see what the problem was. To his surprise, he found that instead of typing "RUN", the student had typed "ARE YOU IN"!

    One morning there was a loud knock at Dean Swift's door. The servant(佣人)opened it. A man who was outside handed her a fine duck and said, "Here's a present for Dean. It's from Mr Boyle." Then, without another word, he walked away.

    Mr. Boyle was a sporty neighbour. He liked reading Dean Swift's books and sending him presents. The second time, the man brought a quail(鹌鹑). "Here's something else for Dean," he said and threw it into the servant's arms.

    "That man has no manners," the servant told Dean.

    "The next time he comes," said Dean, "let me know."

    It was not long before the man came with another present. Dean went to the door.

    "Here's a rabbit from Mr. Boyle, "said the man.

    "See here, "said Dean." That is not the way to deliver a message here. Just walk inside and make believe(假装)that you were Dean Swift. I will show you."

    "I'll agree to that, "said the man, and he walked inside. Dean took the rabbit and knocked gently at the door.

    The door was opened by the man. Dean said, "If you please, sir, Mr Boyle wishes you to accept this fine rabbit."

    "Oh, thank you, "said the man very politely. Then, taking out his wallet, he offered Dean some money." And here is something for your trouble."

    The lesson in manners was not forgotten. After that, the man was very polite when he brought presents. And Dean also took the hint(暗示).He always remembered to give the man a tip for his trouble.

    Chicago Children's Museum (CCM) is to improve children's lives by creating a small society for children to play and learn in.

    About Us

    Chicago Children's Museum is a place where families and children are encouraged to create, explore, and discover together through play. We focus on literacy, science, math, art and health.

    Some of Chicago Children's Museum's most popular exhibits include: Dinosaur Expedition(恐龙之旅)，where kids can dig for dinosaur bones; Water Ways (水道探险), which shows the wonders of water; Kids Town, where children buy and sell in shops and build their own city; Play It Safe(小小消防员), a firehouse that invites families to learn about fire safety through play.

    Chicago Children's Museum is a not for profit cultural center.

    History

    Located at Navy Pier(海军码头) since 1995, Chicago Children's Museum is I now one of the city's top cultural attractions and the second most visited children's museum in the country. Chicago

Children's Museum serves more than 650, 000 visitors per year throughout Chicago.

    One day I happened to meet an Englishman in the street and soon we began to talk. As I was talking about how I was studying English, the foreigner seemed to be very surprised, gently shaking his head and saying "You don't say!". I was puzzled, and I thought, "Perhaps this is not a right thing to talk about." So I said to him, "Well, shall we talk about the Great Wall? Have you ever been there?"

    "Certainly! Everyone back home will laugh at me if I leave here without seeing it. The Great Wall is wonderful!" "Yes, it is one of the wonders in the world. And people of many countries have come to visit it." As I went on telling him more about it, he stopped me again, "You don't say!"

    I couldn't help asking, "Why do you ask me not to talk about it?"

    "Well, I didn't ask you to do so," he answered, greatly surprised.

    "Did you say 'You don't say!'?" I asked again.

    Hearing this, the foreigner laughed loudly. He began to explain," 'You don't say!' means 'Really'. Perhaps you know little about English idioms."

    Wow! How foolish I was! Since then I have been careful with English idioms.