从每小题所给的A、B、C三个选项中，选出可以填入空白处的最佳答案。

    Jadav Payeng is a forestry worker from Jorhat, India. Over the past 38 years, he has planted trees on a sandbar (沙洲）of the Brahmaputra River and has1it into a forest.

    One day in 1979，16-year-old Payeng was walking2the bank of the Brahmaputra River. He saw many snakes on the sandbars. These snakes died in a few days' time3the heat and the absence of trees. Payeng felt very4 when he saw this. He decided to plant some trees. Single-handedly, he started planting bamboo trees, as only bamboo trees could survive (存活）in the sandbars.

    To water the trees was a difficult5for one man. With his hard work and great effort, day by day the6bamboo trees grew into a forest. His tree planting has changed the soil (土壤).Now the sandbar is a thick forest and7to thousands of plants and animals. A large group of around 100 elephants visit the forest every year and8there for a few months.

    Payeng is now in 9fifties. He has planted close to 1,400 acres (英亩)of forests and is10as the Forest Man of India. In 2015，he was honored with Padma Shri, one of the top awards in India.

    What do you do at weekends? Some people like to 1 at home, but others like to go for a walk 2 have a picnic. My friend Jack works hard in a factory during the 3. At weekends he always4the same thing. On Saturday he 5 his car and on 6 he takes his family to a nearby village. His uncle and aunt have a farm there. It isn't a 7 one, but there's always 8 to do. The children help with the animals and give them their 9, Jack and his wife help in the fields. At the end of the day, they are all 10 and Jack's aunt gives them a big meal.

    Benjamin is the unluckiest boy in the world. He 1 falls ill(生病), but if he falls ill, it is on the weekend. He is a good student, but when he takes a test, his pen 2 . His bird sings very well, but when he asks 3 to listen to it, the bird becomes silent(沉默的).

    But Benjamin thinks he is 4 boy in the world. He has wonderful parents and a lovely sister. He has a singing bird. His classmates are friendly to 5 . Benjamin is always happy and he is kind.

    One day his mother 6 him some money to buy an ice-cream. When he 7 the ice-cream shop, he saw an old man outside it. He had old clothes, terrible glasses, and he looked 8 . Benjamin thought he was poor. He decided 9 the ice-cream and gave the money to the man.

    "Thank you. You are a kind boy. But I' m not poor. Keep your money, I'm the richest man in town and sometimes I wear old clothes to see 10 people do," the man said and gave the money 11 to him.

    The man took Benjamin to the biggest 12 in town and said, "Choose 13 you like. I can buy you the most expensive one." Benjamin asked, "Can I choose 14 ? "Of course," answered the man.

    Benjamin chose the newest radio because when his bird keeps silent, he can at least listen to it with his friends. He then bought a new pair of glasses 15 the man.

    The word "sandwich" is an English word. Sandwich was an English 1.He lived in England about two hundred years ago. Sandwich had much 2.He was very rich(富有的).But he liked 3cards very much. He often played 4day and night.5day he played for twenty-four hours without stopping. He did not 6the card table to eat. He asked his servant(仆人) to7him some meat and 8.So he put some meat between two pieces of bread. He did not want to stop playing cards 9he ate. From the name of this man, Sandwich, we have the word “sandwich” 10.

    It took Peter quite a while to find a place for his car, and in the end he had to 1 it on a small street, a few minutes away from the dentist's. As he got out, he looked at his watch. He would meet the dentist at five and he 2had half an hour. He walked into the square and sat down in a chair, to 3the failing sun.

    As he sat there, he 4 the children playing. He was5 to see a red car like his own come out of the street where he had parked. The car moved 6 and soon disappeared(消失). Peter felt in his pockets for his keys, but they were not there.

    "My car!" he shouted in a loud 7. He got up and ran out of the square, then down the small street. He couldn't see his car at first, and then he found it was 8 a larger one, with the keys on the roof of his car.

    By the time he got to the dentist's, it was after five. '" A very strange thing 9to me," he said to the dentist to explain why.

    "Don't 10 about that," said the dentist. "I just got here myself."