All flights______because of the snowstorm, many passengers could do nothing but

游客2023-11-13 22

问题 All flights______because of the snowstorm, many passengers could do nothing but take the train.

选项 A、had been cancelled
B、were cancelled
C、have been cancelled
D、having been cancelled

答案 D

解析独立主格结构。该句逗号前是一个独立结构，逻辑主语是all flights，逻辑谓语的动作在那时也已完成，所以选择having been cancelled。

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