根据短文内容，选择正确答案。
Do you want to be strong and healthy? Everyone will say, "Yes!" But how to keep strong and healthy?
First, always eat breakfast. Good food makes your bones (骨头) strong. Chicken, fish, fruit, milk and vegetables are all good food. They are good for your body.
Second, do more sport. Sport is good for you. You need to run or walk for about twenty minutes every day. If you do it for a long time, you will be healthy.
Third, go to bed early and get up early. Before ten o'clock you go to bed and make sure you sleep for at least (最少) eight hours a day. And you'd better go to bed at the same time every evening.
