prep 一道很简单的题，但是想不通

rudder26

After several years of rapid growth, the health 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




答案是E, C项为什么错类？
E由逗号断开两个主句，主语应该是不能省略的吧/?

pennyconan

it要省略的，前后两句主语是一样的。

msqjz501

and前后的事情都是一个主语做的时候，and后面的主语要省略.

rudder26

但是它中间有了逗号，主句, 主句吧，所以后半句应该要有主语吧？

vincent815

简单吗？做不来啊，求详解

aeoluseros

but前面的逗号是为了强调转折而存在，不管后面的分句主语有没有省略，只要是有了另一个谓语动词习惯上就应该隔开。这点与and连接的两个独立分句不同。

rudder26

but前面的逗号是为了强调转折而存在，不管后面的分句主语有没有省略，只要是有了另一个谓语动词习惯上就应该隔开。这点与and连接的两个独立分句不同。

-- by 会员 aeoluseros (2010/5/3 11:39:47)

谢谢斑竹的指点
我一直认为的是SVO, 连词SVO..，不可以SVO, 连词 SVO的，而连词自然包括and, but, or 的，觉得这是句法上的错误
版主的意思是and 遵循这个原则，而but, 根据意思可以会出现SVO, 连词vo 的情况么？
这里有道GWD的题，E项就是这个or 把我牵绊住了，我觉得or前面的逗号应该省略，或者or 后加个主语，
能对这个知识点做个讲解么？谢谢
Heirloom tomatoes, grown from seeds saved from the previous year, only look less appetizing than their round and red supermarket cousins, often green and striped, or have plenty of bumps and bruises, but are more flavorful.

A.cousins, often green and striped, or have plenty of bumps and bruises, but are

B.cousins, often green and striped, or with plenty of bumps and bruises, although

C.cousins, often green and striped, or they have plenty of bumps and bruises, although they are

D.cousins; they are often green and striped, or with plenty of bumps and bruises, although

E.cousins; they are often green and striped, or have plenty of bumps and bruises, but they are

rudder26

dd

洛洛洛洛

C用了its paying所以被我排除，一般这个结构都错
我想问，BUT不是后面一定要加完整句子，不可以用分词结构的吗？
记得PREP的笔记里有说过，难道我记错了？望指导