Almostseventonsofamber__________the

发布时间：2020-07-25 14:53:45

Almost seven tons of amber__________ the Amber RoomA.was used to makeB.was used to makingC.were used to makeD.were used to making

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C解析考查主谓一致。seven tons of amber七吨的琥珀，谓语动词用复数，be used to do sth.被用来做某事，故选C。
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