Nina: Hi, Jim. Haven’t seen you for a long time. Do you lose weight?
Jim: Hello, Nina. Yes, I do. I go to the gym to do exercise to burn calories.
Nina: How often do you go to the gym?
Jim: I go to the gym twice a week. What about you?
Nina:I hardly do any exercise.
Jim: So how do you keep healthy?
Nina: I eat healthy food four times a week.
Jim: Me,too. I normally eat healthy after I finish doing exercise.