Zhengzhou Subway Line No.1 ___________ last year. It has eased(缓解)the traffic pressure greatly.
A.completed | B.will be completed |
C.was completed | D.has completed |
Zhengzhou Subway Line No.1 ___________ last year. It has eased(缓解)the traffic pressure greatly.
A.completed | B.will be completed |
C.was completed | D.has completed |