III. Use the words in the box in their correct forms to complete each of the following questions. You can use each word ONE time only. root | treatment | promotion | prevention | enhance 9. The practice of acupuncture is __________ in the idea of promoting harmony between humans and the world around them. 10. The athletes are believed to have __________ the muscles' functions by taking pills. 11. They have discovered several ways to __________ the tumors. 12. People believe that doing yoga can __________ diseases. 13. Acupuncture is used to __________ the body’s natural healing capabilities.