请问885 S 10中的15

欧阳可情

15。Once the economic and social usefulness of the motor car was demonstrated and with its superiority to the horse being proved, much of the early hostility to it in rural regions disappeared.
(A) and with its superiority to the horse being
(B) and its superiority over the horse had been
(C) and its superiority to the horse
(D) its superiority over the horse
(E) with its superiority to the horse having been
答案为Ｃ，我就在犹豫，ＡＮＤ后面要连接句子，而Ｃ中its superiority to the horse　 proved．中间是不是缺少一个ＷＡＳ啊？有些迷惑请指教！

Snazzy

What a tricky question. I was nearly trapped by ETS. B is a good distractor.
1, No passive voice is needed with 'prove'. ' This method proves to be effective.'
2, a--> 'and with' redundant
3, b, past perfect is wrong
4, d, 'and ' is needed
5, e, 'having ..' wrong

欧阳可情

鸭鸭，你的意思是不需要使用被动态，那Ｃ中and its superiority to the horse
后面直接跟一个proved是什么结构啊？还是不太明白：）

xiaoyue45084508

Once 倒装结构。
the economic and social usefulness of the motor car was demonstrated和 its superiority to the horse proved，多么完美的并列结构啊！

caterpillar

是一种省略。当两个并列名的谓语都是be动词，并且结构完全相同时，后一个句子中的be可以省略。

Snazzy

以下是引用caterpillar在2004-1-24 13:19:00的发言：
是一种省略。当两个并列名的谓语都是be动词，并且结构完全相同时，后一个句子中的be可以省略。

No,  can not agree. 'prove' use active voice. eg: It proved right.

欧阳可情

晕了：）
大家继续讨论：）

snow_mountain

以下是引用caterpillar在2004-1-24 13:19:00的发言：
是一种省略。当两个并列名的谓语都是be动词，并且结构完全相同时，后一个句子中的be可以省略。

同意，支持省略。

海蓝

嗯，同意Snazzy的～～
prove应该是主动表被动的。
我们一般说 It proves to be right.
而很少说 It is proved to be right.
就像 It sells well.

caterpillar

类似的例子在OG中可以找到。如下：
218.    Despite protests from some waste-disposal companies, state health officials have ordered the levels of bacteria in seawater at popular beaches to be measured and that the results be published.
(A) the levels of bacteria in seawater at popular beaches to be measured and that the results be
(B) that seawater at popular beaches should be measured for their levels of bacteria, with the results being
(C) the measure of levels of bacteria in seawater at popular beaches and the results to be
(D) seawater measured at popular beaches for levels of bacteria, with their results
(E) that the levels of bacteria in seawater at popular beaches be measured and the results
答案是E。这里就是省略了be。
从句子结构上看，理解为省略也更符合平行对称的原则。