Rehana: Brad, what's your problem? You take too many leaves.
Brad: Ma'm, I am sorry. I can't help. I often fall ill.
Rehana: You may have consulted the doctor about it. What does he say?
Brad: He just gives medicine. He says that my immune system is weak.
Rehana: Do you take exercise or play games?
Brad: I love to play computer games only.
Rehana: Do you take enough vegetables and fruit in your diet?
Brad: I don't like them. I like to eat burgers or noodles.
Rehana: My dear student, you need to change your habits if you want to be healthy.
Brad: What should I do ma'm?
Rehana: Your immune system will become strong if you take two steps.
Brad: What ma'm?
Rehana: Take at least one hour's physical exercise everyday. And add fruit and vegetables to your diet.
Brad: Won't I fall ill then?
Rehana: Not so often as you fall now. You'll become healthy and strong.
Brad: Thanks you ma'm, I'll try my best
