All the flights ______ because of the snowstorm, we had to take the train instea

游客2023-11-03  28

问题 All the flights ______ because of the snowstorm, we had to take the train instead.

选项 A、were canceled
B、had been canceled
C、having canceled
D、having been canceled

答案 D

解析 逗号前后句子无连词连接,因此前半句应用独立主格结构作状语,故排除A、B。由于动作发生在过去,且flights与cancel存在被动关系,因此用完成式被动语态,答案为D。
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