【单选题】【消耗次数：1】
All the flights ____ because of the snowstorm, we had
to take the train instead.
①
were canceled
②
had been canceled
③
having canceled
④
having been canceled
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相关题目
【单选题】
All the flights _____because of the snowstorm, we had to take the train instead.
①
were canceled
②
had been canceled
③
having canceled
④
having been canceled
【单选题】
The match was canceled because most of the members______a match without a standard court.
①
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②
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③
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①
some notes were prepared for Dr. Smith
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①
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②
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③
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【单选题】
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①
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②
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随机题目
【单选题】
框架—抗震墙结构布臵中，关于抗震墙的布臵，下列哪种做法是错误的：（）
①
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②
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③
抗震墙宜于中线重合
④
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