Question

All flights___ because of the snowstorm, we decided to take the train.

A．were canceled

B．had been canceled

C．having canceled

D．having been canceled

Answer

D

【解析】考查非谓语动词。本句中没有连词，所以前半部分不是句子，而是一个短语，是一个独立主格结构。Flights与cancel构成被动关系，且是已经完成的动作，所以使用完成被动式。句意：因为暴风雪，所有的航班都被取消，我们绝对坐火车。