   neutral   You'd better give up smoking. It's bad for your health.     neutral   You're right, but you know, it's hard to give up an old habit.  
    neutral   But you should make up your mind first.     neutral   You know, I often have to work til late at night. I need something to keep me awake.  
    neutral   Why don't you go to bed and get up early? You'll have the same time for work.     happiness   
 Thank you very much, doctor! 
 OK! Let ’ s try this method. Maybe next week I can quit my cigarette habit