阅读下面短文，掌握其大意，然后从各题所给的A、B、C、D四个选项中选出最佳选项。

    It is very important to keep healthy. I have a neighbor. She is an old 1. She can do all the housework, 2newspaper, watch TV and search on the Internet to learn 3new. She looks young and beautiful 4she is over 70. Last week a reporter from a 5interviewed( 采访 )her, the reporter asked her about her 6 life.She answered the question 7a smile. She said, " It's8. Keep quite your mind active, take an interest in the world around you,and learn 9one new thing every day. Exercise is the best way to 10, I think ."My neighbor sets a good example for us. We should keep healthy like her.