根据短文理解，从A、B、C、D四个选项中选择最佳答案填空。

    After their 15-year-old pet dog died, Rain and his wife, Ann, looked for months to find the right new pet. "I love dogs." said Rain, a worker at a health club in New York. "I can't 1 not having one.

    "Finally, the couple found a lovely young 2 and decided to 3 him home. They named him Little Sheep. Little Sheep quickly made himself at home, sleeping on his new 4 bed at night.

    With heart disease for 25 years, Rain 5 look his medicine four times a day and always had no problems. 6 on March 17, he took the wrong amount(数量) of medicine before he went to sleep. When he got out of bed to 7 the bathroom at night, suddenly, he felt his heart beating fast and later fell to the floor heavily.

    "Little Sheep was usually very 8 and well-behaved," said Ann. "But when my husband hit the floor, the dog gave a loud cry like a wild animal. I was woken but didn't know what was happening. Then l saw my husband 9 on tile bathroom floor. I ran for the 10 and called a hospital at once. "Rain spent several hours in the hospital. By 6:30 a. m., he had been 11 enough to go home. "It surprises me that Little Sheep has such great 12," said his thankful owner. "He's becoming a calm little gentleman. We can walk him on our street, unleashed(未拴住的), without any problem. He's got a lot of 13 now, and everyone wants to 14 him kindly. "

    "We feel the name Little Sheep is not good enough," said Rain. "So now we call him Big Hero, more 15 for an animal of his ability. "

    Have you ever planted a few trees on Tree Planting Day? Each year, millions of people, both 1 , plant a lot of trees. But this may not be the best way to make your home a 2 place.

    Last week we visited a park in Hebei. We were 3 to find most of the trees had been burned. The workers told us that the trees 4 soon after they were planted because they weren't watered well enough. 5 workers burned them and cleaned the place for 6 trees to be planted this year. 7 a card found in one of the dead trees, a student wrote,“ I hope this tree will grow up with me to 8 the backbone (栋梁) of our country.” The workers said that the survival(存活) of the trees was really more important than 9 trees were planted.

    Some people in Beijing now have a new idea that they can donate (捐赠) some money and let professionals (专业人士) plant and 10 the trees.

    I designed(设计) some of my own Smile cards personally. One of them is for "hiding" 1 in unexpected places. I hoped that this would be found by someone who really 2 it.

    So, I went to a local supermarket near here and placed a $20 bill with the 3 behind a product(产品). I then went to another side to see who would find it. I wanted to see 4he or she would react(反应) !

    After a while a lady5 the money with the card. Then she looked around to see if she could know who left it. I was 6to find she put it back! I guessed she really didn't need it.

    After about another seven 7a lady with a young boy found the money. They started looking around the 8! I guessed they were looking for hidden 9! Again the money was put back.

    I never saw who finally needed the money 10 I did get to see just how amazing some people were! Also, I'm glad that those who didn't think they needed the money left it for someone who did! Very warm!

    It was the first day of school. I had a new classmate, a little old lady with a warm smile.

    She said, "Hi, young man! I'm Rose. I'm 87 years old. Can I give you a hug?"

    I said1,"Of course!"

    "Why are you in college at2an age?" I asked.

    She joked, "I'm here to meet a3husband, get married, have children, and then travel around the world."

    "NO, Seriously," I asked

    "I always4of having a college education. Now I'm getting one!" she told me.

    After a year, Rose became popular. She easily made friends wherever she went. She loved to dress up and she enjoyed the attention from5.

    At the end of the term we invited Rose to6at our party. I'll never forget what she taught7.

    "We do not stop playing because we are old: we grow8because we stop playing. Here are the 9 of staying young. You have to laugh and find humor every10.You've got to have a dream. When you 11 your dreams, you die! "she said.

    "There is a big12between growing old and growing up. Anybody can grow old. That doesn't take any talent or ability, "she added. "But to13, you have to find the chance in change. Have no regrets. We usually don't have regrets for what we did,14rather for things we did not do."

    Finally we graduated from the college with Rose. One week15graduation, she died peacefully in her sleep. She taught us by example that it's never too late to be all you can possibly be.

    Hi, everyone! My name is Linda. I'm 1 English girl. This is a 2 of my family. You can see 3 people in it. These are my grandparents. 4 are in the middle of the photo. The tall man is my father. 5 name is Henry. This is my mother, Anna. My parents have three children, Tom, Paul 6 me. Tom and Paul are my 7. Tom is seven. Paul is three. And I'm six. 8 is the girl? She is my aunt. Her name is Betty. She is my father's 9 . Oh, Pipi is in the photo, too. Pipi is the 10 of my dog. I like it very much. It's my good friend.