Question

-- Is the Nanjing Bridge open to the public yet?
---Yes. It ____ for almost one and a half months .

A．has opened

B．has being opened

C．has been open

D．was open

Answer 1

C

考查现在完成时。for almost one and a half month作为段时间，谓语动词得用延续性动词或表示某种状态存在的词，且时态采用现在完成时。故答案为C。