25．The construction of the two new railway linesby now.A. has been completedB. have been c

问题补充：

25．The construction of the two new railway linesby now.

A. has been completed

B. have been completed

C. has completed

D. have completed

答案：

(答案→)A. has been completed

B. have been completed

C. has completed

D. have completed

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