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、being cultivated
B、been cultivated
C、having cultivated
D、cultivating
答案A
解析 find后面可以跟现在分词或过去分词的复合结构。本题中的found it being cultivated是跟现在分词的被动态。
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