阅读《童区寄传》，完成小题。
                                                                             童区寄传
                                                                               柳宗元
      童寄者，郴州荛牧儿也。行牧且荛，二豪贼劫持，反接，布囊其口，去逾四十里，之虚所卖之。寄伪儿啼，恐栗，为儿恒状。贼易之，对饮，酒醉。一人去为市；一人卧，植刃道上。童微伺其睡，以缚背刃，力下上，得绝因取刃杀之。
      逃未及远，市者还，得童，大骇，将杀童。遽曰：“为两郎僮，孰若为一郎僮耶？彼不我恩也；郎诚见完与恩，无所不可。”市者良久计曰：“与其杀是僮，孰若卖之？与其卖而分，孰若吾得专焉？幸而杀彼，甚善!”即藏其尸，持童抵主人所，愈束缚牢甚。夜半，童自转，以缚即炉火烧绝之，虽疮。手勿惮；复取刃杀市者。因大号。一虚皆惊。童曰：“我区氏儿也，不当为僮。贼二人得我，我幸皆杀之矣。愿以闻于官。“
      虚吏白州。州白大府。大府召视儿，幼愿耳。刺史颜证奇之，留为小吏，不肯。与衣裳，吏护还之乡。
      乡之行劫缚者，侧目莫敢过其门，皆曰：“是儿少秦武阳二岁，而讨杀二豪，岂可近耶?”

如图，一个小圆沿着一个五边形的边滚动，如果五边形的各边长都和小圆的周长相等如图，那么当小圆滚动到原来位置时，小圆自身滚动的圈数是（　　）

根据短文理解，从A、B、C、D四个选项中选择最佳答案填空。

    Farley worked for the Canadian government. One day. he was 1 to learn more about wolves(狼). Do wolves kill lots of caribou(北美驯鹿)? Do they kill people?

    They gave him lots of food and clothes and guns. Then they put him on a plane and took him to 2. The plane put him down and went away. There were no houses or people in this place, but there were lots of animals and lots of wolves.

    People tell terrible stories about wolves. They say wolves like to kill and eat people. Farley remembered these stories，and he was 3. He had his gun with him 4.

    Then one day, he saw a group of wolves. There was a mother wolf with four baby wolves. A father wolf and another young wolf lived with them.

    Farley watched these wolves every day. The mother was a very 5 mother. She gave milk to her babies. She gave them lessons about life. They learned how to 6 food. The father wolf got food for the mother. The young wolf 7 the children. They were a nice, happy family-a wolf family. Farley did not need his 8 anymore. In a short time, he got on well with the wolf family. Farley watched them for five months. He learned many new things about wolves. He learned that many stories about wolves were 9. Wolves do not eat people, and they do not eat many large animals. And he also learned bad things about men. It was men who killed many caribou and wolves.

    Later, Farley wrote a book about wolves. He wanted people to 10 them and not to kill them.