---May I smoke here?---If you _______, choose a seat in the smoking section.
— Hello, may I have an appointment with the doctor? — ____
— I'm afraid I can't finish the book this week. — ____.
— How's everything going? — ____.
— You keep on coughing. What's the matter? — Oh, I've got a cold. Nothing serious, ____.
— We were talking about the new play ____, remember? — Yes, I enjoyed it very much.