To my mind, the best way to keep fit is to go in for sports. 依我看来,保持身体健康最好的办法就是参加体育运动。
What kind of sports do you participate in? 你参加什么体育运动呢?
I play football once a week. 我每星期去踢一次足球。
I used to play football, but I don't have time any more. 我以前踢足球,可是,我再也抽不出时间了。
That's too bad. Exercise is very important for your health. 那可不好呀,运动对你的健康很重要。