Question

The Dongying-Hainan airline         for about 5 months. I have taken the flights three times.

A．is open

B．has opened

C．has been open

D．has been opened

Answer 1

C

句意：東營(yíng)——海南航線已經(jīng)開通了五個(gè)月了。我已經(jīng)乘坐過這個(gè)航班三次了。結(jié)合語境可知本句描述的是現(xiàn)在已經(jīng)完成的動(dòng)作，用現(xiàn)在完成時(shí)態(tài)。主語是動(dòng)作對(duì)象，故用被動(dòng)語態(tài)。選Ｃ。