语法填空
Exercise is something that can help to make you look good, feel good and be 1 (health). Experts suggest that teenagers spend at least 30 minutes 2 (exercise), five times a week. That is easy to do!
Walking and riding your bike count, and so do school sports. Often, teenagers give up sport 3 they have no time left after their studies.
Many teenagers are surprised to learn that when you exercise, your body produces some chemicals 4 make you feel peaceful and 5 (relax) and increase your ability 6 (concentrate)when you study. Your stress can also 7 (relieve) after a good nights sleep.
When you sleep, your body prepares you for the day to come. Teenagers need eight to ten hours of sleep each night. As 8 matter of fact, 9 (lose)of sleep can make you look tired, and even cause you to gain weight. If you follow the suggestions above, you will look and feel much 10 (good)in no time at all!