—Why did you arrive late? —The fog our air flight for about half an hour.A. held upB. tur

问题补充：

—Why did you arrive late?

—The fog our air flight for about half an hour.

A. held up

B. turned down

C. broke up

D. pulled down

答案：

(答案→)A. held up

B. turned down

C. broke up

D. pulled down

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