问题补充:
Zhengzhou will be more and more convenient when Zhengzhou Subway in two years.
A. is completed
B. will be completed
C. will complete
D. has completed
答案:
(答案→)A. is completed
B. will be completed
C. will complete
D. has completed
解析:句意:两年后郑州地铁建成后,郑州会越来越便利的。由when引导的时间状语从句用一般现在时,根据句意本句用被动语态,根据故选A。