ZhengzhouwillbemoreandmoreconvenientwhenZhengzhouSubway...

问题详情：

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

【回答】

A

知识点：动词语态

题型：选择题