未知题型
听第10段材料，回答12~15题。 Why did people keep dogsin the old days?[A]Peopleused dogs for hunting． [B]Peopleused dogs for protection． [C]Peopleused dogs for fooD.
【参考答案】
B
独白第四句指出：Intheolddays...toprotectthemselvesagainstattac......
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