The mail was for two days because of the heavy snows. A. held out B. held up C.
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The mail was ___ for two days because of the heavy snows.
A. held out B. held up C. held back D. held off
试题答案
B

The mail was ___ for two days because of the heavy snows.
A. held out B. held up C. held back D. held off
B