题目内容
Our plane delayed taking off as we ran into a storm. We were ________ for several hours at the airport, waiting for the storm to clear up.
A. figured out B. built up C. held up D. taken off
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题目内容
Our plane delayed taking off as we ran into a storm. We were ________ for several hours at the airport, waiting for the storm to clear up.
A. figured out B. built up C. held up D. taken off