通读下面的短文，从A、B、C三个选项中，选出一个最佳选项填空,使短文意思通顺、结构完整。

      Are there aliens? In the movie Home there1. The Boov are aliens. But their enemies ruined their planet. 2the Boov have to find a new planet. They choose to go to 3and drive people away.

      Earth is a good place. The Boov are4there. They have a party to celebrate. But a Boov named Oh makes a big 5. He asks everyone to come to their party, including their enemies. Other Boov think Oh is 6 spy(间谍). Oh 7run away. He meets Tip, the last8on Earth. Tip is smart. The Boov can't catch her.

      Both Oh and Tip are on the run. They become friends and go on adventures. On the way, the9 change each other's world. And they get to understand the true meaning of “10”.

    Once there was a king. He was wise but everyone was afraid of him. His face showed the sadness deep in his heart. So there were deep 1 lines（皱纹）on his face.

    In his country lived a beautiful girl. Everyone seemed to love her, so did the king.He wanted to 2her, and finally he decided to speak to her of his love. After he dressed in his best clothes, he looked in the 3, but he saw a hard face, 4when he tried to smile.

    "How about wearing a mask（面具）?" he thought. Then he ordered his magician topaint a mask that looked kind and happy and handsome. The magician 5and said: "But you must keep your own face in the same lines that I paint and be kind to all people from your heart. If not, the mask will break." The mask looked so6that no one knew it was not the true face of the king. Months passed, the beautiful lady got married to the king, and the king treated everyone 7to keep the mask from breaking.

    At last, the king didn't want to cheat his beautiful wife any more. 8 he asked the magician to take the mask off. Surprisingly, he found his face was just like the mask he had worn for so long!

    This story tells us that a man is what he is in his heart.

    An old carpenter(木匠) was ready to retire. His boss was 1 to see the good worker go. He asked the carpenter 2 he could build just one more house. The carpenter said yes, 3 his mind was not on his work any more.

    He used poor materials and worked on the house 4 . When the carpenter finished his work, the boss 5 the front-door key to him, "This is your house," he said, "A 6 for you."

    What a surprise! What a 7 ! If he had known he was building his 8  house, he would have done it differently. Now he had to live in the house he had poorly built.

    9 it is with us. Sometimes we build our 10 carelessly. At important points we do not try our best. Then with a shame we look at the situation we have 11 . We find that we are now living in the house we have poorly built. But we don't have a 12 to make it all over again.

    Think of 13 as the carpenter. Think about your life. Build it 14 . It is the only life you will ever build because life is a do-it-yourself project.

    Your life today is the 15 of your attitudes and choices you made in the past. Your life tomorrow will be that of your attitudes and choices you make today.

    Maria Mitchell was born in 1818 during a time when many people thought that woman did not need to learn . But , Mitchell's father thought that both boys and girls should go to school .1 he tutored her at home as well as sent to her to school .

    Mitchell's father , recognizing her interest in astronomy (天文学) at early age , encouraged her interest and taught her how to use a telescope . As an 2 she worked as the first librarian at the Nantucket Atheneum library from 1836to 1856 , all the while still looking at the sky at night , studying the stars and the planets.

    In October 1847, Mitchel saw a bright star through the telescope . She was sure that she had 3seen that star before. Excited , she ran to tell her father . She carefully wrote notes about the star. The next night , it looked as if the” star” had 4It also seemed to have a tail (尾巴)！Now , Mitchell was sure that she had found a comet , not a star.

    At eh time , the king of Denmark was offering a prize to the first person to find a comet that could only be seen through a telescope . Mitchell won the prize! It was a gold medal . But , she won something else too . She won people's respect when they saw that she was 5her work . Later , the American Academy of Arts and Sciences voted her in as its first female member .

    In 1856, a new college just for women opened . It was called Vassar College , and Mitchell became a professor there . She was the first female professor to teach astronomy , or the science of stars and planets . Because of her , female students learned that they could be scientists too . Women could make valuable 6to help understand our world .

B

    Bobby likes wearing hats. Hats make him feel cool. Hats1the sun out of his eyes. His favorite hat is a baseball hat.

    Last year, Bobby saved money every month to buy the baseball2 . After a few3 , he had enough money for the new hat. Although it4 him some months to buy one, he was excited.

    Bobby bought a new red hat because his favorite baseball team wore  5  hats. When he put on his new hat, he felt he was a part of the team. When Bobby's father saw the new hat, he was kind of6. He didn't think his son could save so much money.

    One day Bobby's father got two7tickets, so he planned to take his son to watch a baseball game. Bobby was very happy to wear his new red hat to the8. He was very excited to watch his favorite team. He thought he was one of them, 9 all the team wore the same red hats.

    His team won the game, and Bobby was very happy. The new hat was good and it10 his favorite team good luck. And it was really good to spend time with Dad.

    A groundhog (土拨鼠) is a small animal that digs and lives under the ground. It is also called the woodchuck. Groundhogs live in many parts of the US.

    They go to 1 for most of the winter like bears and some other 2. Do you know that the US has a 3 named Groundhog Day? It is celebrated on 2 February.

    A legend (传说) says a few hundred years ago Europeans introduced Groundhog Day to America. 4 the legend, the groundhog 5 from his long deep sleep on 2 February, halfway between winter and spring. If he comes up from the 6 and it is sunny, he will see his shadow (影子) and he'll be afraid. If he sees his shadow, there will be 6 more weeks of 7 weather. But if he comes up and the sky is 8, he will not see his shadow and will not be afraid. Then spring weather will come very soon.

    Some people believe this legend and they 9 the sky on 2 February. Many people are happy if it is cloudy on that day. They think spring will come soon. But most people think it is just a 10 legend. What do you think?