----Hi John. Are you still a smoker?--. It’s two years since I stopped smoking.A. No

问题补充：

----Hi, John. Are you still a smoker?

----. It’s two years since I stopped smoking.

A. No, but I used to be

B. Yes, I do

C. No, but I used to

D. Oh, yes, but I wish I didn’t

答案：

(答案→)A. No, but I used to be

B. Yes, I do

C. No, but I used to

D. Oh, yes, but I wish I didn’t

解析：考查句意串联。句意：—John，你好。你还抽烟吗？—不，但是我过去常常抽烟的。我不抽烟已经有两年了。本题的关键是后面的It’s two years since I stopped smoking.也句子的谓语动词是stop是一个短暂性动词，则翻译成动作开始以来。故意为：我不抽烟到现在已经2年了。如果句子的谓语动词是延续性动词，则表示从动作结束以来。