2. 外语
  3. All flights______because of the storm, they decided to take the train.

All flights______because of the storm, they decided to take the train.

admin2013-03-27  38
问题 All flights______because of the storm, they decided to take the train.
选项 A、having canceled
B、having been canceled
C、were canceled
D、have been canceled
答案B
解析 句子的大意为：所有航班都因为风暴取消了，所以他们决定乘火车。此句为独立主格结构，相当于with all fights having been cancelled，fights和cancel之间关系为被动，排除A、C，如果答案为D，句中的标点应为句号。所以B项符合题意。
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