1) You should abstain from smoking.
你应当戒烟。
2) It is to your interest to give up smoking.
戒烟对你有好处。
3) Have you ever stopped smoking?
你曾戒过烟吗?
4) Are you going to give up smoking?
你打算戒烟吗？
5) Have you tried to give up smoking?
你试过戒烟吗？
6) Did you have to stop smoking?
你一定得戒烟吗？
参考词条