76. All flights _______ called off because of the terrible weather, they had to go there by train.A.

题目简介

76. All flights _______ called off because of the terrible weather, they had to go there by train.A.

题目详情


76. All flights _______ called off because of the terrible weather, they had to go there by train.
A.wereB.had beenC.beingD.having been
题型:单选题难度:偏易来源:不详

答案

D

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