阅读下列短文，从下面每小题的A、B、C、D四个选项中选出最佳选项。

B

    It was July 17th of 2017. The little helpless girl, who had trouble walking, was going out into the wide world. In June 2016, I got the idea that I was going to America as an exchange student. With tears in my eyes, I said goodbye to my family.

    After I finally arrived at the airport in Burlington, Vermont. I was welcomed by my host family. They didn't know much about my disability. “I hobble a little, but I don't see it as a problem.” I think it's the will that decides what you can and cannot do, and the disability doesn't matter!

    Before I went to the US, I knew I was going to miss home. But I went! Why? I've been a fighter ever since I decided not to give up my breath when I was born! My mother wrote my host mom an e-mail and told her about my hard birth so they would understand. I remember clearly after she finished reading it, she came into the room, gave me a big hug and said, “You are a fighter.” My host family supported me so much during the year. In school, small notes were sent out to all my teachers, by e-mail, to tell them about my disability. Everything worked greatly.

    By the end of my year, exchange students were asked to talk about our years. I spoke in front of about 100 people! I was extremely proud of my “speech”. The following day some teachers stopped me and said, “Your speech was the best one.”

    My year in Vermont was the best thing I've done so far! I proved I AM A FIGHTER and that NOTHING IS IMPOSSIBLE!

    It seems very natural that if you have two dollars and add two dollars to them, you have four dollars. But do you know it too men millions of years to be able to think so? In fact, one of the most difficult things to teach children is the idea of numbers.

    In ancient times, when a man wanted to tell how many animals he owned. he had no system(系统) of numbers to use. He put a stone into a bag for each animal. The more animals, the more stones he had. It may explain why the word "calculate" comes from the Latin word "calculus", "calculus" means "stone."

    Then, man used lines to count. People would just draw a line for each thing they wanted to count, but they had no word to tell the number.

    Later on, people used fingers. Again we have word that goes back to this. The word "digit" comes from the Latin word "digitus". It means "finger"! And the fact that we have 10 fingers led to the use of 10 in the system of numbers.

    The number system we use today was invented by the Hindus in India thousands of years ago and was brought to Europe during 8^th to 11^th by Arab traders(商人). In this system, people count things with ten numbers. 1. 2.3.4.5.6.7.8.9.and 0. It is decimal system(十进制), that is, it is built on the base of 10.

Tom gets up at 5:30 this morning. He and his mom need to leave home very 1 and take the first 2 to the airport(机场). 3  will go on a trip. They can't be late 4 the plane.

"It's my 5 plane trip,"he tells the bus driver."That's 6 !"the bus driver says. They get to the airport and then Tom 7 his bag onto the plane." How cool the plane is!"he says to his mom. Tom has never traveled(旅行) by plane, 8 he is a little afraid. Then— Whoosh! The plane is far from the ground. On the ground, cars and buses look very 9 . Tom thinks it's cool, so he takes some 10 of them.

I love my mother and my Chinese teacher very much. 

Brian was a funny student. He loved watching comedies(喜剧) best and hoped to become a comedy 1  one day. When he heard about a comedy show to be held at his school, Brian decided to 2 . But some students laughed at him. "You are not funny but silly, "Ken, one of his classmates, said to his face. "3  will like what you do, "another boy also said to him loudly. For a moment, he thought about giving up the show. 4  he remembered how much his friends liked his jokes. And also his teachers said he was very 5 , so he decided to prepare for it. 

Brian did a great job at the show and it was a great 6 . His teachers and friends were 7  of him. Even so, Ken told Brian that he was not funny and he would 8  be successful. Brian didn't understand why Ken said so, but he 9  that it had nothing to do with him. He confidently continued to work towards his goal. 

As years went on, Brian met more people like Ken. "10  will do a terrible job, "they said to him. 11 , most people encouraged him and some 12  him to become even funnier. He got a lot of 13  to play a role in movies. His fans thanked him because his comedies made them feel 14  when they were not glad. 

Now Brian is a big comedy star! He is doing what he 15  best. He never cares about those unkind people, and he laughs all day long!

On May 24, 2021, 46-year-old Wang Hong reached the top of Qomolangma, which made him the first blind person from Asia to climb the world's highest mountain. Erik Weihenmayer and Andy Holzer made it in 2001 and 2017. They are the only three blind mountaineers to have climbed Qomolangma. Born in Chongqing, Wang became blind at the age of 26 due to glaucoma (青光眼). 

Both his father and uncle lost their sight because of the same disease, so Wang knew exactly what life would be like for blind people from an early age. He lived his life without goals. Luckily, he was saved by his wife. "I felt so hopeless then. But my wife was always there and encouraged me. Without her by my side, I couldn't have pulled myself together, " Wang recalled. Later, Wang became a blind masseur (按摩师). 

In 2015, by accident, he heard of the blind American mountaineer Weihenmayer, who climbed Qomolangma.     ★        . He then started to climb the mountains together with his guide. With the help of his guide, he did a lot of training, including rock climbing and walking on snow and ice. 

Wang also met many other mountaineers from all over the world. They all encouraged him even though they spoke different languages. Wang could feel their warmth through hugs or pats on his shoulder. Wang said the climbing of Qomolangma taught him many things, including how to trust people. 

"I can't see the world, but I want the world to see me." Wang said, "I've got so much energy from my family and these climbers. Now I'd like to share that energy with others and encourage other disabled people. "