2. 外语
  3. Corn originated in the New World and thus was not known in Europe until Columbus found it ______ in Cuba.

Corn originated in the New World and thus was not known in Europe until Columbus found it ______ in Cuba.

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问题 Corn originated in the New World and thus was not known in Europe until Columbus found it ______ in Cuba.
选项 A、been cultivated
B、having cultivated
C、cultivating
D、being cultivated
答案D
解析 现在分词被动形式的一般式为being+v.-ed形式，不仅表示被动的动作，而且还表示这个动作正在发生或与谓语动词的动作同时发生。此句being cultivated与谓语动词found同时发生，作found的宾语补足语。故选项D正确。因分词和逻辑主语之间是动宾关系，故不用现在分词cultivating。
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