Snakes come near the house now and then. We have to finding a solution to driving them away.A.set ab

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【题目】Snakes come near the house now and then. We have to ______ finding a solution to driving them away.
A.set about
B.set down
C.set out
D.set up

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【答案】A
【解析】句意：蛇经常来这房子附近。我们必须着手找到把它们赶走的办法。A. set about着手；B. set down 放下；C. set out开始；D. set up建立。结合句意可知选A。