问题
The moment we heard the news of the earthquake, we began to ________ the work to rescue those who were trapped in the building.
A:set off
B:set down
C:set aside
D:set about
B:set down
C:set aside
D:set about
正确答案是：
同类题型
Measures must be taken before there is another collapse of the coal mine, ______?
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___________ you swim —No, I___________.
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