Knives________usually________metala

发布时间：2020-07-26 02:52:50

Knives ________ usually ________ metal and wood.A.are, making byB.are, made ofC.are, made withD.are, made by

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B解析短语be made of意为“由……制成”，短语be made by意为“被……制造”。
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