阅读下面材料，从每题所给的A、B、C、D四个选项中选出最佳选项。

Dear Edward,   

    How are you doing? I just visited Machu Picchu in Peru today. I've never seen such a great place before. This place is so amazing that I want to share my feelings with you.

When I first got to Machu Picchu, I felt like I was walking in the sky. Even the clouds were just under my feet. Do you know how high Machu Picchu is? I was surprised that it was at about 2,500m. How could people build a city on such a high mountain? It must have been very difficult to move stones there.

Before the Europeans arrived, the Incas (印加人) were the last and the most modern society in the Andes (安第斯山). The Incas were afraid that the Spanish would find them, so they built Machu Picchu on an Andes plain (平地) as a secret city in the 14th or 15th century. As a result, the Spanish never found Machu Picchu.

An American explorer discovered Machu Picchu in 1911. For a long time before that, nobody even knew Machu Picchu was there. After Machu Picchu was found, it was called "The Lost City of the Incas". It is still a mystery why and how Machu Picchu was left and forgotten by everyone.

I just had a wonderful day. Especially, I will never forget the "goodbye boy" who was a local boy dressed in traditional Inca clothes. When we went down the mountain by bus, the boy waved goodbye to us until we were out of sight (视线). He shouted some words at us too, and I guess, it meant, "Goodbye, come back again soon!" Why don't you visit Machu Picchu someday? I am sure you will love this place as much as I do.

                                                                                                                                                                      Yours truly,

                                                                                                                                                                          Lynn

    Last month, a common graduation ceremony (毕业典礼) was held in Tianjin University, but it received much attention. Xue Minxiu, born in 1937, graduated with excellent grades after working hard for 4 years.

    Going to a university has always been a dream for Xue. But for some reasons, she didn't have the chance when she was young. Even so, she never forgot her dream. In 2014, she was accepted by Tianjin University and finally her dream came true. Since then, Xue has been a model for the people around her. She got up at 5 o'clock every morning. Then she studied for a while before brushing teeth and having breakfast. Her room was filled with books and newspapers. Wherever she went, she would take books with her.

    In fact, for her age, Xue had many difficulties during the four years. But nothing could stop her. Whenever she had problems, she would either solve them by herself or ask teachers for help. Through her hard work, she passed the exams and was named "a star student" during the first period of her college life.

    "I think the true meaning of our lives is to challenge (挑战) and improve ourselves whether we are old or young. Xue said at the graduation ceremony. "For me, learning something I enjoy is a lifelong journey. I want to thank Tianjin University for giving me the chance to achieve my dream. Our lifetime is short, so we should make good use of it."

    When you are in England, you must be very careful in the streets because the traffic drives on the left（左边）.

    In China, before you cross a street, you must look to the left first and then the right. If the traffic lights are green, the traffic can go. People on foot mustn't cross.

In the morning and in the evening when people go to or come from work, the streets are very busy. Traffic is the most dangerous then.

    When you go by bus in England, you have to be careful, too. Always remember the traffic moves on the left. So you must be careful. Have a look first or you will go the wrong way.

    In many English cities, there are big buses with two floors. You can sit on the second floor. From there you can see the city very well. It's very interesting!

    In 1909 an English newspaper offered £ 1,000 to the first man to fly across the English Channel in an aeroplane. Today, modern jets cross it in minutes. But at that time it still seemed a good distance. The race to win the money soon became a race between two men. Both were very colourful.

    One was Louis Bleriot. He owned a factory in France that made motor car lamps. He was already well known as a pilot because he had had accidents several times. Some people laughed at him. One man said, "He may not be the first to fly across the Channel but he will certainly be the first to die in an accident!" But Bleriot was really a good and brave pilot. He also had many good ideas about aeroplane design.

    The other man was Hubert Latham. He was half French and half English. He took up flying when his doctors told him he had only a year to live. "Oh, well," he said, "if I'm going to die soon, I think I shall have a dangerous and interesting life now." Latham was the first to try the flight across the Channel. Ten kilometres from the French coast, his plane had some trouble. It fell down into the water and began to sink under the water. A boat reached Latham just in time. He was sitting calmly on the wing and was coolly lighting a cigarette. Bleriot took off six days later. He flew into some very bad weather and very low cloud. He somehow got to the English side and landed in a farmer's field. When he did so, a customs (海关) officer rushed up to his plane. Planes have changed since then, but customs officers have not. "Have you anything to say?" The officer asked.

    "I can't believe this is happening. " I thought as I saw Jane walk into the restaurant. She hadn't changed at all. She was still tall and beautiful, with wavy blonde hair and bright green eyes. I smiled and thought of how my life had changed since we had last met.

    It all started when I noticed her at a party in a friend's house. I followed her to the dining room and started talking to her about the food. "You seem very interested in food, " she laughed. "Well. I'm a great cook, "I told her. It was a lie, but I had to find an excuse to see her again. "Why don't I cook you dinner sometime? "

    Two days later, Jane came to my house. However, the dinner party was very embarrassing(尴尬的). I ordered food from a nearby restaurant, but I told her that I had cooked it. After dinner, she offered to wash up and found the delivery boxes in the kitchen. She laughed at me and I felt awful. Angry with myself, I decided then and there to learn how to cook.

    I never saw Jane after our terrible dinner date. I started a cookery course and found that I was good at it after all. I went on to train to be a great cook. I worked hard and saved up until I was able to open my own restaurant.

    Now. she had walked into my restaurant. Feeling very happy, I pretended I was a waiter and walked to her table. "Ready to order, madam? "I asked.