The moment we heard of the accident, we the work to rescue those trapped in the mine.A. se

发布时间：2020-08-16 11:13:55

The moment we heard of the accident, we          the work to rescue those trapped in the mine.
A. set off
B. set down
C. set back
D. set about

网友回答

A. set off
B. set down
C. set back
(答案→)D. set about
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