The area west of Springfield was a smelting factory from 1879 until 1962, when it was purchased by Manfred Otterbein, the noted philanthropist and animal lover, who established a wildlife refuge on the property and used one of the existing buildings as a rare bird sanctuary.
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Awho established a wildlife refuge on the property and used one of the existing buildings as
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Bwho, establishing a wildlife refuge on the property, used one of the existing buildings like
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Cwho, when he had established a wildlife refuge on the property, used one of the existing buildings like
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Dwho had established a wildlife refuge on the property, using one of the existing buildings to be
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Eestablishing a wildlife refuge on the property and using one of the existing buildings as
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正确答案: A