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

发布时间：2020-08-16 07:00:56


47. Three hundred firemen raced to the hotel after a smoke detector      the alarm soon after midnight.
A. set off
B. set out
C. gave away
D. gave off

网友回答

A. set off
B. set out
C. gave away
D. gave off
解析：可联系答.案.网客服索取。
以上问题属网友观点，不代表本站立场，仅供参考！