GWD17 语法第二题，关于伴随状语的问题。求NN帮忙呀！感激不尽

123BodhgayA123

After several years of rapid growth, the healthy care company became one of the largest health care providers in the metropolitan area, while it then proved unable to handle the increase in business, falling months behind in its payment to doctors and hospitals.

A.        while it then proved unable to handle the increase in business, falling months behind in its payment to
B.        while it then proved unable to handle the increase in business and fell months behind in its payment to
C.        but then it proved unable to handle the increase in business, falling months behind in its paying
D.        but then proving unable to handle the increase in business, falling months behind in paying
E.        but then proved unable to handle the increase in business, falling months behind in paying
答案选E，一般but后面不是应该跟完整句子嘛，这里是不是省略了but then (it was ) proved unable to handle....

alzn2765

“完整句子”必须包括的成分是什么？
只有名词，只有动词，只有介词，那个是句子？

相同主语可以省略

123BodhgayA123

alzn2765 发表于 2015-8-8 10:32
“完整句子”必须包括的成分是什么？
只有名词，只有动词，只有介词，那个是句子？

貌似现在懂了！谢谢

123BodhgayA123

123BodhgayA123 发表于 2015-8-8 13:10
貌似现在懂了！谢谢

但是相同主语，这里谓语不同呀，第一句是became，根据(the healthy care comapny was)proved unable...,第二句的谓语是was,不应该谓语也要相同才能省略吗？

123BodhgayA123

alzn2765 发表于 2015-8-8 10:32
“完整句子”必须包括的成分是什么？
只有名词，只有动词，只有介词，那个是句子？

但是相同主语，这里谓语不同呀，第一句是became，根据(the healthy care comapny was)proved unable...,第二句的谓语是was,不应该谓语也要相同才能省略吗？

alzn2765

123BodhgayA123 发表于 2015-8-8 14:16
但是相同主语，这里谓语不同呀，第一句是became，根据(the healthy care comapny was)proved unable..., ...

那里说第二句的谓语是was proved了？
你查查字典，看看prove能不能做系动词，Linking-Verb。

123BodhgayA123

alzn2765 发表于 2015-8-8 19:54
那里说第二句的谓语是was proved了？
你查查字典，看看prove能不能做系动词，Linking-Verb。 ...

恩恩，有这样的用法。谢谢了！
prove 作"证明是;结果是;事实说明"解时,用作连系动词,可用于以下句型:
1.prove+形容词
The handbook proved most useful.这本手册证明很有用.
The medicine proved satisfactory.结果证明这药疗效令人满意.
2.prove+名词
She proved a very strict teacher.结果证明她是一位非常严格的老师.
His efforts,however,proved a failure.但他的努力结果都失败了.
3.prove+介词短语或副词
Perhaps this book will prove of some use to you in your studies.也许这本书会对你的研究有用处.
The power station was completed and proved up to standard.这座发电站建成了,证明质量符合标准.
4.prove+动词不定式
As time went on,Einstein's theory proved to be correct.随着时间的推移,爱因斯坦的理论证明是正确的.
She may prove to be the most suitable person for the job.结果她可能是最适合干这项工作的人.