The Dongying-Hainan airline for about 5 months. I have taken the flights
题型：不详难度：来源：
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 |
|
答案
| C |
解析
| 句意：东营——海南航线已经开通了五个月了。我已经乘坐过这个航班三次了。结合语境可知本句描述的是现在已经完成的动作，用现在完成时态。主语是动作对象，故用被动语态。选Ｃ。 |
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