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
答案为A,是Spawned 和 Extending的分词的平行
关于B的解释:the ostensible parallel between extends and the idstant verb is is superficial and would result in an awkward and unclear sentence.
还是不太理解为什么不能和IS 平行。。。
请高手赐教
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