阅读下面短文，从每题所给的A、B、C、D四个选项中，选出能正确回答所提问题或完成所给句子的最佳答案。

     Sixteen years ago, a boy gave me an important gift. It was a smile.

      It was the early autumn of my first year at a middle school, and my old school was far away. As a result, no one knew who I was. I was very lonely, and afraid to make friends with anyone.

     Every time I heard the other students talking and laughing, I felt my heart break. I couldn't talk with anyone about my problems.

Then one day, my classmates were talking happily with their friends, but I was sitting at my desk unhappily as usual.  At that moment, a boy entered the classroom. I didn't know who he was. He passed me and then turned back. He looked at me, with a smile.

    Suddenly, I felt the touch of something bright and friendly. It made me feel happy and warm. That smile changed my life. I started to talk with other students and made friends. Day by day, I became closer to everyone in my class. The boy with the lucky smile has become my best friend now.

    One day I asked him why he had smiled, but he couldn't remember doing so!

     It doesn't matter because all the dark days have gone. I believe that the world is what you think it is. If you think it is lonely, you might always be alone. So smile at the world and it will smile back.

    Roger, a young man from China, has taught Chinese in a primary school in England for 3 years. A lot of children like his class and he enjoys teaching them very much. All the pupils are quite interested in what Roger teaches them. They learn quickly and do everything carefully.

    One day he said to the children, “People in a lot of Asian countries wear white clothes at funerals (葬礼), but people in America and in Europe wear white in the weddings because white means purity and happiness. What colour does an English woman wear when she gets married?”

    Mary said, “White, sir, because she is happy.” “That is good, Mary,” Roger said. “You are quite right. She wears white because she is happy.”

    But then one boy in the class put up his hand. “Yes, Dick?” Roger said, “Do you have a question?” “Yes,” Dick said. “Why do men wear black in our country when they get married, sir?”

    The car was invented just a century ago. You may know all kinds of cars' names, but many people don't know who was the inventor of the first car.

    The first car was invented not by an Englishman, but by an American. His name was Henry Ford.

    Henry was born in a poor family. He was the eldest of the six children. When he was a boy, he became interested in watches and machines. When he was twelve years old, his mother died. Soon he had to work in a machine shop for two dollars and fifty cents a week.

    In the evening, he repaired watches for another dollar a week. The hard life made him strong and able.

    At that time, there was another interest in the life of the young Ford. He wished of making a machine.

    It could run without horses, so named horseless carriage. He overcame a lot of difficulties and in April 1893, the "horseless carriage "was invented at last. It was the first car.

    Later Henry Ford founded the Ford Motor Company. He was really the first inventor of the car in the world.

    Look at the picture. It is a picture of my1. My classroom is on the third floor. It is nice and big. I like it very much.

    2the front wall of the classroom, there is a big blackboard. It is very new and good. Our teacher like3on it. There is a round4above the blackboard. It can tell us time. On the back wall of the classroom, there is a5, too. On that blackboard, there are pictures. We6them on it.

    There are fifty students' desks and chairs. Those desks7chairs are low. In front of the students' desks. There is a teacher's desk. It is8and big. There is a computer on it.

    On the two sides (边)of the classroom there are9big windows, two on each side. Those windows10the classroom bright.

    How about your classroom? Can you tell me?