- Is Tom still smoking? - No, it's a long time he smoked. By next Saturday he fo

— Is Tom still smoking?
— No, it's a long time ______ he smoked. By next Saturday he ______ for three months without
smoking a single cigarette.

[     ]

A. that, will be going
B. after, will have gone
C. since, will have gone
D. before, has gone

试题答案

C