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阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中单词的正确形式填空。
Hi, dear boys and girls! Do you know how to be a healthy kid? Here (be) some rules you should follow.
(one), eat different food, especially fruit and vegetables. You may have a favorite food, you'd better eat something different. If you eat different food, you will probably get more nutrients (营养物质)your body needs.
Then, drink water and milk as often as possible. When you're (real) thirsty, warm water is the No. 1 choice. Milk is a great drink that can give you more calcium (钙)your body needs to grow strong bones.
Next, listen your body. How do you feel when you are full? When you are eating, notice how your body (feel) and when your stomach feels comfortably full. Eating too much will not make you feel comfortable and make you fat.
Afterwards, limit (限制) screen time. Screen time is the time you watch TV, DVDs and videos, or using (computer). It is good (take) more exercise such as basketball, bike riding and swimming. You can't watch TV for more than two hours day.
Follow these rules and you can be a (health) kid.
