They________have arrived at lunchtime but their flight was delayed.(2011·全国 )A．w
题型：不详难度：来源：
They________have arrived at lunchtime but their flight was delayed.(2011·全国 )| A．will | B．can | C．must | D．should |
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答案
| D |
解析
| D [考查虚拟语气的用法。句意为：他们本该午饭时到达，但他们的航班推迟了。should have done本来应该做某事，而实际没做。but their flight was delayed这样的结果，说明他们本来该到达却没有到达，因此选D。] |
举一反三
The doctor strongly recommended that he ________ a holiday.| A．would take | B．took | | C．had taken | D．take |
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The law required that everyone ________ his car checked at least once a year.| A．has | B．have | C．had | D．will have |
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The professor requested that all the students ________ the reports at once.| A．would hand in | B．handed in | | C．hand in | D．handing in |
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John went to the hospital alone.If he ________ me about it, I would have gone with him.| A．should tell | B．tells | | C．told | D．had told |
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But for the help of my English teacher, I ________ the first prize in the English Writing Competition.| A．would not win | B．would not have won | | C．would win | D．would have won |
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