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Beneath the soil of the Malheur National Forest in eastern Oregon, a fungus has for centuries been slowly weaving its way through the roots of trees, to become the largest living single organism known to humans.

正确答案: C

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prep.破解版sc1 No.75

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楼主
发表于 2007-7-3 16:19:00 | 只看该作者

prep.破解版sc1 No.75

Beneath the soil of the Malheur National Forest in eastern Oregon, a fungus has for centuries been slowly weaving its way through the roots of trees, to become the largest living single organism known to humans.

 

(A) has for centuries been slowly weaving its way through the roots of trees, to become

(B) has slowly woven its way through the roots of trees for centuries, and so becoming

(C) that has been slowly weaving its way through the roots of trees for centuries has become

(D) that has for centuries slowly woven its way through the roots of trees and has become

(E) that, having slowly woven its way through the roots of trees for centuries, to become

the answer is C, I chose B, any NN could help to explain? thanks.

沙发
发表于 2007-7-3 16:38:00 | 只看该作者
b中逗号后面and句子不完整。For centuries表示动作的延续性,用完成进行时表示。
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