请教“并列句的省略原则”

renlan05

A president entering the final two years of a second term is likely to be at a severe disadvantage and often unable to carry out a legislative program.
(A) likely to be at a severe disadvantage and is often unable to
(B) likely severely disadvantaged and often unalb to
(C) liable to be severely disadvantaged and cannot often
(D) liable that he or she is at a severe disadvantage and cannot often
(E) at a severe disadvantage, often likely to be unable that he or she can
正确答案：A

我疑惑不解的是：两个句子并列，前一个句子含有be 动词，那么第二个句子的be 不是必须省略吗? 为什么这道题不省略呢？大牛们帮帮忙吧！

renlan05

没人回答呢！

renlan05

请大牛回答哈！谢谢呢

renlan05

你的问题怎么和题目不相符啊~

-- by 会员 jeffery2541 (2012/7/31 22:12:23)

怎么不相符呢？这个是并列句呀，第二个句子按照规则应该省略be动词，但答案怎么没省呢？

djdj520r

- -这个不是  is likely to  跟 is unable to并列么

jeffery2541

你的问题怎么和题目不相符啊~