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(2013·青岛一模)All flights ________ owing to the heavy fog, many passengers could do nothing but take tr

题目简介

(2013·青岛一模)All flights ________ owing to the heavy fog, many passengers could do nothing but take tr

题目详情

(2013·青岛一模)All flights ________ owing to the heavy fog, many passengers could do nothing but take trains.

A．to be cancelled	B．were cancelled
C．have been cancelled	D．having been cancelled

题型：单选题难度：中档来源：不详

答案

D

选D　考查独立主格结构。逗号前后两部分之间没有连词，因而前半部分不可能是句子，排除B、C两项。此处只能用独立主格结构，动词不定式在此结构中表示将来，故排除A项。现在分词的完成被动式表示被动、完成，故选D项。

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