Zhengzhou Subway Line No.1 ___________ last year. It has Wap版

试题详情及答案解析

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

答案：C

试题分析：句意为“郑州地铁一号线去年完工。它大大缓解了交通压力”由last year判断使用一般过去时的被动语态，故答案为C。
考点：考查一般过去时的被动语态的用法。