By the end of last year,another new subway__in shanghai.A.would be completed B.was being completedC.has been completed D.had been completed

问题描述:

By the end of last year,another new subway__in shanghai.
A.would be completed B.was being completed
C.has been completed D.had been completed

D

D.had been completed
过去完成时

D.by the end of last year 意为“到去年年底”,用于过去完成时态.

D 过去完成时的被动语态 ,答案关键词是:By the end of last year