og12-42 -ed和-ing到底有几个区别...?

卮言浅夏

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

og给的解释说spawned的动作已经结束,所以用-ed,extend的动作延续至今,所以用-ing
所以-ed和-ing到底有哪几个区别呢?
主被动 和 时态 ?
觉得这题用主被动考虑也完全说得通啊

卮言浅夏

up~ ls是说只存在主被动的区别咯?

卮言浅夏

up

卮言浅夏

继续upup