题目内容
They could have attended the awarding ceremony，but their flight due to the bad weather．
| A．was delayed | B．had been delayed |
| C．has delayed | D．was delaying |
A
解析试题分析：考查时态和语态。根据句中的could have done可知是对过去事情的推测，故用一般过去时。主语their flight与delay之间为被动关系，故用被动语态。句意：他们本可以参加颁奖典礼的，但他们的航班由于坏天气延迟了。故A正确。
考点：考查时态和语态
口算心算速算应用题系列答案
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