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[Sentence Correction]
试题详情
题目：
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.
选项:
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:
E
提问：
想请问一下d和e的谓语动词问题。e的but then proved中的proved的主语是company，所以proved算谓语？ 然后d，没有谓语动词的原因是因为proving不能和became并列，然后只好看成company provinq 所以才没有谓语？（希望老师解释下d和e的划线部分谓语问题）
解答：
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