47. Three hundred firemen raced to the hotel after a smoke detector ______ the alarm soon after midn

题目简介

47. Three hundred firemen raced to the hotel after a smoke detector ______ the alarm soon after midn

题目详情


47. Three hundred firemen raced to the hotel after a smoke detector ______ the alarm soon after midnight.
A.set offB.set outC.gave awayD.gave off
题型:单选题难度:偏易来源:不详

答案

 A

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