短文填空：根据短文内容及所给首字母提示写出所缺单词,。（共5分，每题0.5分）
Everyone knows exercise is important. All work and no play makes Jack a dull boy. By t  exercise, we can relax(放松) our b  and mind. At the same time, we can harden our muscle and have a good figure. If we don't take exercise for a l time, we may easily fall sick.
I e  several outdoor sports. S  in the sea is my favorite. Because there are too m people in a swimming pool and the water is always d , I prefer to swim in the sea.
Playing badminton is also f . I can always find a place in the park f  playing badminton. Besides, I like jogging in the morning. S , I jog with my parents in the park.