With the winter vacation （come）, many teenagers are planing their holiday workout schedule. It seems that teens have realized that exercise is one of the easiest and most （benefit） ways that they can be fresh and fit, and protect themselves a number of diseases when growing up.
There are different kinds of sports teens can do. （improve） heart and hung efficiency （心肺功能）, running and swimming sound like smart （choice）. When doing physical training like pull-ups and weightlifting, one's muscle strength is increased, and bodies get developed. Besides, teens can take courses which （design） for young people, including boxing or hip-pop dancing.
Besides doing sportsare suitable for teens, a proper diet and enough sleep（be）also important. Since it takes both a strong body and sound mind to （full） realize one's potential （潜能）, please make full use of this winter vacation, prepare for the new term!
