根据所给的中文意思，并结合文段内容写出单词的正确形式，每空一词。（10分）

Do you know how to __1__ (保持) healthy? Here are some good __2___(方法) for you. First, exercise every day, because it’s good for your __3__(健康). Then you need good eating __4__(习惯). For example, __5__ (试图,努力) to eat much healthy food and __6__ (喝) some milk. Next, don’t eat too much ­__7__(废弃物) food, once or __8__(两次) a week is enough. Finally, you can spend some time in the countryside, the __9__(大自然) will help you forget your __10__(问题)