The construction of the two new railway lines by now.
A. have been pleted
B. has been pleted
C. has pleted
D. have pleted
网友回答
A. have been pleted
(答案→)B. has been pleted
C. has pleted
D. have pleted
解析：考查时态及语态，根据题中的时间by now，应用现在完成时态，句意：到现在为止两条新铁路线的建造已经被完成了。根据语境应用被动语态，所以选B。