1. A: You must have some more chicken.1 B: No, thanks. I'm supposed to be slimming.1 A: Can't I tempt you?1 B: Well, maybe I could manage a very small piece.1 2. A: Wouldn't you like to finish up the omelette?1 B: No, really, thank you. I just couldn't eat anymore.1 A: Come on now. Surely you can manage it.1 B: No, thank you, really. I must have put on pounds as it is.1 3. A: Another piece of meat pie?1 B: No, thanks, really. I'm on a diet.1 A: Please do. You've hardly eaten anything.1 B: It's delicious, but I don't think I ought to.1 4. A: Do have the rest of the nashed potato.1 B: No, thank you. I've had too much already.1 A: Just take it to please me.1 B: Ok, but only a small piece or I shan't have room for any pudding.