短文改错 many study show that smiling is good for our health .是再

短文改错 many study show that smiling is good for our health .是再 短文改错 many study show that smiling is good for our health .这篇 many study show that smiling is good for our health .is good for our health. Exercising is good for our health.Everyone knows that exerci climbing m____ is good for our health. kfc is good for our health. L_ is good for our health. ____enough exercise is good for our health talking e is good for our health I think walking and running is good for our health 改错 eating fruit is good for our health 为什么用health