阅读下面短文，从短文后所给的A、B、C三个选项中选出能填入相应空白处的最佳选项。

    One cold evening in winter, I asked my dear mother, “Mum, what were you like when you were at my age?” She looked up, 1at my question.

    After a long time, she answered, “Polly, why did you ask me that? Well, you see, I was not so lucky as you. In our times, there was only one 2for girls－being a hard-working woman. To tell you the truth, I 3 my mother, your grandmother, when I was growing up. I did so much for her, but not once did she ever said, 'thank you'.”

    And then, Mother went on, “I had always wanted to hear a word of 4 from her, but I got only the family rules and wishes I could never manage. During those years, she 5 me to get up at six every morning and cook breakfast. She often 6 me with other girls, who were as 7 as me, and found my mistakes.”

     “Nothing was ever 8 enough for my mother,” continued my mother, “but now I know she did 9 me, even if she never said so. Polly, like your grandmother, I love all my children, and you are everything to me. I have been very strict and hard on you, but I am raising you in the only 10 I knew.”

    One day a man found a cocoon(蚕) of a butterfly in the forest. He sat there for several hours and watched the butterfly. Suddenly, a small opening appeared and the butterfly made its great effort(努力) to force its body through that little hole. Then it seemed to stop making any progress. It appeared as if it had gotten as far as it could and it could go no further.（那个蛹好象忘记了它该怎样做, 也好象停止了挣扎）.

    So the man decided to help the butterfly. He cut off the remaining bit of the cocoon so that the butterfly would come out easily. But to his surprise, the butterfly got a heavy body and very small wings when it came out of the cocoon.

    The man continued to watch the butterfly because he expected that the body would grow smaller at any moment and the wings would become larger and be able to fly. But neither happened! In fact, the butterfly spent the rest of its life crawling(爬) around with a heavy body and small wings. It was never able to fly.

    The man was in his kindness, but he didn't understand the nature rules. Before the butterfly came out of the cocoon, fluid(液体) from its body must be forced into its wings, and then would be ready for flying. It must have a hard struggle(拼搏) to get through the small opening to get its freedom from the cocoon.

    Sometimes struggles are exactly what we need in our life. If God allowed us to go through our life without any difficulties, it would make us fail. We would not be as strong as we could have been, we could never fly.

    It is over a year now since Cathy came to China. She is now living in Nanjing and has worked in a computer factory for six months. The factory is in the north of the city, and her flat is in the south. But, she has never been late for work.

    Cathy is very popular in the factory. She is kind to everybody and gets on well with the Chinese workers. After work, in the evenings they visit each other and talk about almost everything.

    However, Cathy has made up her mind to leave the factory. She is going to find a job in a travel agency(旅行社). “If I work in a travel agency, I'll be able to meet more people. I can learn more about China，” she told her friends.

    One day last week she had a talk with the manager of the travel agency .He seemed pleased with her Chinese. At the end of the talk, he said, “I'll give you a ring in a week and tell you the result.” Now Cathy is waiting for the answer.

No one knows when the first kite was made. The first record of a kite was more than 2,000 years ago in China. Han Xin, the leader of an army, wanted to bring down a king. He decided to dig a tunnel (隧道) into the king's palace. He flew a kite over the wall of the palace to make sure the length of its string (线). In this way, he could determine how long the tunnel should be. His men in the tunnel took the kite string with them. When they reached the end of the string, they knew to dig up.

  Kites have been flown in Japan for hundreds of years. In the 1700s, kites were flown in autumn to give thanks for a good harvest. They were also flown to send good wishes to couples who had their first son. Today in Japan, kites are often flown as part of a celebration, such as the beginning of a new year. And kite festivals are held each year in many parts of the country.

  Kites have been used for scientific purposes in the western world. In 1752, Benjamin Franklin tied a key to a kite and flew it in a storm to find out that lightening was a form of electricity. In the 1890s, Lawrence Hargrave invented the box kite to test ideas about flight. From 1898 until 1933, the United States Weather Bureau (气象局) used box kites to collect weather data. The Wright brothers also experimented (试验)with kites. What they learnt helped them make the first airplane flight in 1903.