阅读下面三篇短文，根据短文内容，从所给的A、B、C、D四个选项中选出最佳选项。

C

    I live in a town. In the past, the air wasn't fresh. There was a river. People put rubbish in it. The water went bad. The fishes in the river died. There was much rubbish in the streets which weren't wide. It smelt terrible. People lived in low old houses with trees all around and had a terrible life. The children couldn't have many chances to go out to cities, not to say, have a good education. Farmers worked only with their hands. They worked very hard all year round. They planted crops(农作物)with the help of animals. The poor people went anywhere on foot, and only some rode bikes. Few visitors came here to spend their holidays.

    At present, things have been greatly changed. People have moved into big bright houses or beautiful buildings. There is a big factory. Many people work in it. They are getting richer. Different kinds of cars and buses are running in the big streets. It is faster and easier to travel. People plant many fruit trees and get much money. People plant crops with the help of machines which can save lots of work. Students can study in a modem school. People pay more attention to the environmental protection. The mountains are becoming greener, water much cleaner. What around us is the clearer sky and greener water. As a result, many visitors come here to spend their holidays. People enjoy their modern life. But with the development of the industry, we have fewer trees. Air and water pollution is becoming more and more serious. We must do something to stop pollution to make our town more and more beautiful.

    The Little Prince, a classic novel was written by the French pilot and writer, Antoine de Saint-Exupéry. It 1 a story that happened in the Desert of Sahara, about a pilot and a little prince. The pilot had an accident with his plane.2 was wrong with his engine. And he made friends with the prince who 3 from another planet.

    The main4in this book, a special little prince, lived on a5planet known as Asteroid B-612. It 6 only three volcanoes(火山) and a rose with surprising beauty. The flower was rarely found and charming7 words, but she was also proud and self-centred. And it made the little prince leave his planet because he was 8 to face her. During his journey, the little prince visited several planets, and had conversations with their9 including a king, a conceited(自负的) man, a tippler（酒鬼）, a businessman, a lamplighter and a geographer. From them, he found how meaningless the world of grown-ups was.10he arrived on the Earth, where he was shocked by a heart-breaking fact that his flower was not the only one in the world. At that moment a11 appeared , asking the little prince to “tame” (驯服)him, then he did so.12 the little prince left, the fox made him believe that the rose was special to him and the meaning of love and responsibility . At the end of the story, the little prince 13to go back home. The pilot walked14with his friend to the place where he landed. He saw a yellow poisonous snake bite the little prince.

    The next morning, the pilot was unable to find the prince's body. He finally 15to repair his plane and leave the desert.

    The pilot wrote this story to remember everything between himself and the prince.