2. 外语
  3. The flights______(因暴风雪而取消), many passengers could do nothing but take the train.

The flights______(因暴风雪而取消), many passengers could do nothing but take the train.

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问题 The flights______(因暴风雪而取消), many passengers could do nothing but take the train.
选项
答案having been canceled because of the snowstorm
解析 分析题干语法结构可知，逗号前的部分是状语，应当使用非谓语动词修饰flights；“取消航班”发生在passengers could do nothing之前，因此所填部分应当使用现在完成时：另外，括号内虽未出现“被”字，但其表达的是被动意义，故分词结构要用完成时的被动态，结构为having been done。
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大学英语四级

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