Everyone ________ to be strong and healthy. Me, too. A healthy body ________ healthy  bones(骨骼), muscles(肌肉) and skin(皮肤). ________ strong bones, you need ________ good foods. You can eat more vegetables and fruits. For strong muscles, you need ________. You need about twenty minutes of exercise three ________ a week. ________ is exercise. ________ ping-pong is exercise. Riding a bike is exercise. Walking to school is exercise. Healthy skin is ________ skin. Remember ________ a bath or a shower always. I hope everyone is strong and healthy.