标题: og12 42 两个分词时态不一样，助动词不能省略吧 [打印本页] 作者: detective006 时间: 2011-3-21 21:28 标题: og12 42 两个分词时态不一样，助动词不能省略吧 42. Scientists have recently discovered what could be the largest and oldest living organism on Earth, a giant fungus that is an interwoven filigree of mushrooms and rootlike tentacles spawned by a single fertilized spore some 10,000 years ago and extending for more than 30 acres in the soil of a Michigan forest.
(A) extending (B) extends (C) extended (D) it extended (E) is extending