A. with             B. without       C. medicine D. fight against     E. quickly

It is reported that 300 million people in China have eyesight trouble. More and more parents hope to save their children’s eyesight with      or by correcting the ways that children read and sit. But in fact, one should start with the exercise on one’s feet. Here are three ways to save eyes.
First, don’t tie your shoes too closely. Try wearing comfortable and soft socks or walking    socks and shoes at home. While you are travelling, try wearing cloth shoes in order to improve blood circulation(循环).
Second, walking on tiptoes(脚尖)is good for one’s eyesight. It can     eyesight trouble.
Third, rope skipping can also be good for one’s eyesight. While skipping rope, one has to move   , making both the brain and the eyes excited. It may also help make one grow taller.