Dear John,

Hearing that you are organizing a campaign, I’m happy to write this letter to you. My favorite sport is running.

First of all, running is beneficial to physical health. The reason is that running builds up my strength and muscles in an effective way. Second, running helps me make more friends. As I keep running every day, I get to know an increasing number of friends on campus. Third, running enables me to keep a balanced diet. Through running, I begin to pay attention to the nutrition and match of food.

In a word, doing sports is good for us. I sincerely call on all of you to join me!

Best Regards

Yours, Zheyi