--- Is Tom still smoking?
--- No. By next Saturday he for a whole month without smoking a single cigarette.
A. will go
B. will have gone
C. goes
D. has been going
网友回答
A. will go
B. will have gone
C. goes
D. has been going
解析:考查时态:句意:--汤姆还抽烟吗?--没有,到下周六,他就一整个月没有抽任何一只烟了。时间是By next Saturday,by引导时间状语的句式中句子的时态用完成时态,因为是next saturday还没有到来,所以应该用将来时态,所以by next Saturday和在一起就是将来时态的完成时态,所以选B。