Crum，is talking with his doctor．A is for Mr．Crum，；B is for the doctor．
B：Mr．Crum，please．
A：Hello，doctor．
B：How are you？
A：I'm Fine，thank you，doctor，but I need your advice．I want to give up smoking．
B：That's a good idea．Smoking is very bad for your health．（66）___
A：I started smoking when I was 22．That's 25years ago．
B：（67）___
A：Yes，I've tried several times，but I always start smoking again．Now，my daughter has asked me to give it up，and I want to try again．（68）___And I want to succeed this time．
B：Well，let's see．I'll listen to your breathing，and do some tests．Have you got a cough？
A：（69）___ And I'm not fit．I get a lot of colds．
B：Well．，it's really a good idea to stop smoking．Smoking causes many illnesses，not only cancer．
A：（70）___
B：One thing you can do is to join a group．That often works，because you have other people to help you．
