Reportedly yesterday a group of American soldiers were walking along the road in Iraq when

发布时间：2020-08-16 06:56:20

Reportedly yesterday a group of American soldiers were walking along the road in Iraq when a bomb was     , three of whom were killed.
A. set about
B. set off
C. set up
D. set out

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A. set about
(答案→)B. set off
C. set up
D. set out
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