阅读下面短文，掌握大意，然后从A、B、C、D四个选项中选出最佳选项。

These days, a lot of photos about how a three-year-old girl looked after her disabled father are 1 spread over the Internet. Many people were 2 by her. And people gave her a 3 nickname (绰号) “little strong girl”.
The little girl is Dong Xinyi. She was born in a small 4 in Dezhou, Shangdong Province. When she was several months 5, her father Dong Jianshe had an accident 6 riding his motorcycle and lost his 7. Two years later her mother left her father 8 the poor life. As an old saying goes, “ The children of 9 people manage household affairs early.” Little Xinyi had to do lots of housework. She 10 her father in her power. She cooked noodles, carried water, cleaned rooms and washed clothes. The little girl brings happiness and 11 to her poor family. And 12 , the local government has 13 medical treatment to her father and promised to cover all medical expenses(费用).14 the same time, the government is also planning to raise money for the girl's 15 . Now Dong Xinyi has got a chance to go to nursery school(幼儿园) like other children,

    In a far-away place, there was a village. The village was1in potatoes than anywhere else in the country. At the end of every growing season,2 potatoes were dug out of the ground, and readied for market. In each home, men and women would 3 divide the potatoes into three groups, large, medium and small.

    One year, there was a young man4 received his share of the potatoes. As the other villagers 5 , he walked around the village laughing and talking. 6 villagers thought he was lazy, and they worried that this man would never get 7 potatoes ready in time. When it was time for the villagers 8 to market, they were greatly surprised to find that the man's potatoes 9 perfectly into three groups.

    After 10 the man how he did it, they understood he was not lazy,  11very clever. He had put all his potatoes in a cart and pulled it along the village's rough dirt road. As the cart moved up and down over the road, the potatoes moved 12. The small potatoes moved to the bottom, the larger potatoes rose to the top and the medium potatoes rested 13 the middle.

    Life 14 like this too. The rough roads we travel along can also 15 us.

    “Come here, boys and girls! Story time,” says Ms Lee to the class.

Great! The children love 1 very much. They all sit around Ms Lee, and she 2 the story. Then, FatherChristmas (圣诞老人) comes.

    “Excuse me, is Aaron in the 3?” he asks.

    Everyone looks at Aaron. He walks up to Father Christmas and says, “I'm Aaron. Do I 4 you?”

    “Get the beard (胡须) off my face, and you will know me.”

    Aaron is very curious (好奇的), 5 he gets the beard off Father Christmas' face. 6 does he see? His father!

    Aaron's father is a soldier (士兵). He 7 goes back home. This year he has a long holiday. He can 8 with his family. It's great. He dresses up 9 Father Christmas and comes to Aaron's school.

    Aaron is 10 to see his father. It's a great Christmas present for him.

    I know a Catherine who is smart, educated and interesting. But I avoid her because she never 1 complaining(抱怨)! For years, I fought against my feelings, because I really like and admire(赞赏) her, but I've found I just can't be her friend. Her world is 2“but.”. The trip would have been nice, but the drive was too long.  The food was good, but the light of the restaurant was too  3.  The hotel was too hot, the bed hurt her back and the room service was too slow. Her complaints were 4 changing me.  Months ago, my best friend Daisy was listening to me complaining about Catherine 5 she just became really angry. “Either break up with her, or leave me alone.” She shouted at me, “I'm tired of listening to your complaining. ” Her honesty surprised me, and I began to keep myself away from Catherine. Later, I did 6 her.

    Now I try to remain happy and positive (积极的) about life, and find friends of the same. There's been scientific research lately. It shows that people who find 7 to be thankful for their lives are actually happier, and I believe that is true. Endless complaining seems to control your life if you let it come into your brain. And too much complaining will actually make your life 8.

    Some people take “gratitude ( 感激之情) walks” every day, where they 9their lives in a positive way. By developing a grateful attitude, you can be turned away from what's troubling you, and 10 what makes you happy. Then you will have a beautiful life. 

    Last summer holidays, my classmates and I helped with a charity show. Its aim was to raise money for those children 1 couldn't go to school in poor areas. It was very meaningful for us to do it.

    We did a lot for that. I felt happy when I 2 to be the host. Though it was exciting, I was 3 nervous because of the TV cameras that I couldn't sleep all night. I knew that lots of people 4 to watch the show, also there would be a large audience in 5 front of the TV. As a few famous stars would come to the show, one of my duties 6to introduce each of them. I also had some 7 things to do. So I often worked 8 morning to night. It was hard work,9 I was happy. I practiced a lot before the show. I had to remember all the words and do 10 right at the same time. At first, I thought I would never be able to do it better. I kept 11 myself not to be nervous.

    Slowly everything became easier. The big day came very fast. 12 people came to the show. They donated money and materials. And the local business also gave 13 a lot of support. How generous they are! After the show, we sent the donations to those poor children. Soon they wrote back. They were really grateful to us. I was very proud14 I could help them. I hope15people will always help them.