在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，词首字母已给。
Teenagers are always stressed out now. They are often too busy to think about their diets and exercise. The truth is, healthy eating, along with regular exercise. Is the only way to k___83_fit.
During your teenage years, it is important to give your body the energy it needs. Teenager girls need about 2,200 calories(卡路里)a day and boys need a bit more. Doctors suggest 2,800 calories for teenage boys. 50% of your calories should come f  84  rice, bread, vegetables and fruit. You also need to d  85 a lot of water, six to eight glasses a day. Enough water will improve your skin and give you healthy hair.
Exercise can help to make you look good, feel good and be healthy. Scientists suggest that teenagers should spend at l  86  30 minutes exercising every day.
When you exercise, your body produces something. It makes you feel r  87  and energetic. It can even help you sleep better at night and let you pay more a  88  when you study.
Let’s eat healthily and take regular exercise.
答案： k_______  f _______ d _______
l _______ r _______ a _______

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