A: Oh dear, my weight has gone up again.
B: I am not supprised, you eat too much.
A: And I suppose sitting at the desk all day in the office doesn't help.
B: No, I wouldn't think so.
A: I do wish I could lose weight.
B: Well, why don't you go on the diet?
A: I've tried diets before but they've never worked.
B: Perhaps you should excerise more. Why don't you go to an exercise class.
A: Yes, maybe I should.