求助一题prep的语法题～～

Cynthia_1

Since the start of the space age, more and more littering has occurred in orbits near Earth, often because the intentional discarding of lens caps, packing material, fuel tanks, and payload covers.

• A.more and more littering has occurred in orbits near Earth, often because
• B.orbits near Earth have become more and more littered, often from
• C.orbits near Earth became littered more and more, often resulting from
• D.there have been more and more littering of orbits near Earth, often because of
• E.there had been littering more and more of orbits near Earth, often with
  

答案是b。我选的d。现在已经知道了d的错误原因，其他不能选的错误也知道。但是我对正确答案有点小疑问。

为什么这个from能修饰的是orbits呢？？当时没有选b的原因就是觉得这个修饰仿佛优有点歧义啊。怎么能说是轨道是来自于丢弃的balabala呢？还是说要根据语意，这个from也可以修饰这句话？

求解T_T

HoganTong

因为from修饰的不是orbits呀，become littered from ...看作一个idiom就好了

梦里的富翁

逗号加介词短语放在句尾，不是修饰特定的名词，而是修饰前面一整个clause
而且后面的也不是来自于丢弃的具体东西
the intentional discarding 是一个动名词，并不是from后面的具体东西，而是这个丢弃的动作
希望有用！

Cynthia_1

没有人。。T_T

Cynthia_1

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