All of the plants now farmed on a large scale were developed from plants______wi

游客2023-11-17 30

问题 All of the plants now farmed on a large scale were developed from plants______wild.

选项 A、that once grew
B、once they grew
C、they once grew
D、once grew

答案 A

解析连词用法。that引导限制性定语从句，修饰先行词plants；B、C、D都缺少能够替代先行词plants的连词。

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