Question

The construction of the two new railway lines ________ by now．

[　　]

A．

has been completed

B．

have been completed

C．

has completed

D．

have completed

Answer 1

答案：A
解析：

根据时间状语by now可以知道应该用现在完成时，又因为意思为被动，所以用现在完成时的被动语态。