og 210

cissie0128

问？？

210. 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

答案是 a

and extending怎么能对呢？是省略了is 么？

顾风

和 spawned平行，一个主动，一个被动