Listen to the dialogue and fill in the blanks. Susan: What's your hobby, Brian? Brian: My hobby? Of course, it is to ______ (1) ________. Susan: Then what food do you like best? Brian: Hamburgers. They are so _____ (2) ______! Susan: But you are too fat to eat hamburgers. Brian: Never mind, Susan. I never ______ (3) ______my weight. Susan: But it is bad for your health to eat too much. You'd better ________ (4) __________. Brian: Maybe you are right. I 'm getting tired easily these days. Susan: Do more exercise and eat less food, Brian. Brian: _______ (5) _______. Thanks.