A1l flights _________ because of the heavy storm, so we decided to take the train. A. have canceled ...
2022-12-04 01:59:28 106次 2013-2014学年北京市朝阳区高三上学期期中考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
A1l flights _________ because of the heavy storm, so we decided to take the train.
A. have
canceled
B. have been canceled
C. had
canceled
D. had been canceled
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