Question

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

[　　]

A．

has completed

B．

have completed

C．

have been completed

D．

has been completed

Answer 1

答案：D
解析：

该句主语为不可数名词construction，所以谓语应用单数，可排除B、C项；时间状语by now表示“到现在为止”，所以句子谓语应用现在完成时；从逻辑关系来看，construction与complete为被动关系，所以答案为D项。