阅读短文,在空白处填入一个适当的词,或填入括号中所给单词的正确形式。
Today, we are living a rapid life. We always try to do things 1. (quick). On weekdays, we are busy studying or working. One of the 2. (problem) is that we don't have enough exercise. We all know August 8th is National Fitness Day. 3. we exercise for one hour a day, we will work healthily for 50 years and live a happy life forever.
Scientists have found that people who often exercise are 4. (healthy) than those who don't, whether they do it indoors 5. outdoors. According to a survey, students can learn better and feel relaxed when they have more time to play sports at school. Many young women enjoy doing yoga(瑜伽) or dancing 6. (relax) and stay slim(苗条的). Some housewives think doing housework is 7. good way to burn calories(卡路里). It can keep 8. (they) moving while getting their house in order. To be strong and full of energy, some men like running, riding bicycles or playing ball games.
You will be healthy both in the body 9. mind by doing exercise. This weekend, don't make any plans, just get up early and start 10. (exercise).

1. quickly 2. problems 3. If 4. healthier 5. or
6. to relax 7. a 8. them 9. and 10. exercising/to exercise