It is very important to stay healthy. I have a neighbor. She is an old lady. She can do all the housework,   41  newspapers, watch TV and search on the Internet to learn something new. I often see   42  do taijiquan in the morning and dance in the evening. She looks young and beautiful   43  she is over seventy. Last week a reporter from a magazine interviewed her and asked   44  she kept so young and healthy. She replied with a smile:
I have a secret of staying young and healthy. It is quite   45  . Keep your mind active, take an interest in the world   46  you, and learn at least one new thing every day. Try to do different kinds of housework and do sports as   47  you can. Don’t think you are too old to go back to   48  . I know a man who entered a medical college when he was 70 years old. He studied there for 6 years and now he is a doctor. Another man went to a tennis school at the age of 71 and now he is good at   49  tennis. Some people may say staying young is easy only for those who live in the future. In fact, no matter how old you are, you can make it.
Please tell the story to your family. It would be a good start to   50  the lady’s example. I hope all people will stay young and healthy.

—Who taught ________ to write the computer program?
—Nobody. She learned it by __________.

Miracles（奇迹）will happen if you don't give up trying. Even if you have  16 for one hundred times, you may succeed when you try for the 10lst time.
When I was born, my doctor told my mother that there was something wrong with my 17 .  They were too soft to be able to walk. Although the news was bad, my mother didn't become  18 . She didn't believe what the doctor said  19 started to look for other ways.
My mother kept looking for other doctors for me, and finally she  20 . The doctor and his team in the hospital did   21 they could to help me. They also asked my parents to teach me to do some  22 to help me walk. One day when my mother came to pick me  23  . I crawled(爬) towards her. She was so surprised and happy that she couldn't believe  24  eyes. Crawling was not walking, but it was a good  25 . Day by day, I could walk by myself.
When I grew up, my mother   26  told me these stories. She said that if I thought of what she said whenever I met   27 , I could do anything successfully. I have been working hard and I have turned out to be a very   28  person. I get best   29 in school and I am a good dancer and swimmer. Thanks to my mother's strong resolution(决心), I live a    30   life now. What the story tells us, as my mother always says, is: Never give up.

A true friend is always helpful. I didn’t believe it   36  one thing happened to me when I was in Grade 7.
Li Jie was one of my classmates. He and I were also neighbours. He always listened to his mother   37  I didn’t like listening to my mother. I didn’t think it was necessary for  38  to teach me anything. Li Jie knew all about that but he said   39  to me.
One weekend, Li Jie invited me to watch a film. I liked films very much so I went to the   40  with him happily. The film was about the love between a   41  and her son. After watching it, I began to know how great the love of the mother was. I felt   42  that I didn’t listen to my mother before. I decided to think more about my mother than about   43 . After I told that to him, Li Jie smiled and said, “It’s really necessary for you to watch such a film. That was a good choice (选择) for both you and me.”
Suddenly, I knew   44  he invited me to watch the film. Just at that time, I knew a true friend is always   45 .