求助NN语法题

stevenckguo

In no other historical sighting did Halley’s comet cause such a worldwide sensation as did its return in 1910-1911.

A.did its return in 1910-1911

B.had its 1910-1911 return

C.in its return of 1910-1911

D.its return of 1910-1911 did

E.its return in 1910-1911

这道题在prep里答案是C，但在GWD里答案是A，我觉得两个都有道理，求NN给个解答
According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive internet data over regular telephone lines with speeds much higher than is currently possible.



A.with speeds much higher than is

B.with speeds that are much higher than are

C.at much higher speeds as are

D.at much higher speeds than that

E.at speeds much higher than are

答案E,这道题than的左边完全没有系动词，怎么than的右边又冒出了are，搞不懂这是比较的神马？？

一套题一上来就错两个，很桑心的有木有啊

stevenckguo

第一题看OG，地点状语倒装，所以比较的是地点，C没疑问，第二题是考对比，我真心没看懂要补出什么，而且读着好不顺，等NN吧。。

vakaka

第一题是OG12的第138题，答案是C。这个题目因为是倒装所以一时难以分清比较对象。从meaning上来看，比较的内容应该是"in no other historical sighting"，所以你对应的应该是“in its return of 1910 - 1911”。

第二题：比较句子里很多内容可以是省略的，这就是为什么comparison是SC里最难的。这句句子还是首先分析比较的是什么？ Speeds。所以原句应该是这样：
at speeds much higher than (speeds that) are currently possible.

stevenckguo

谢谢NN

wenyiwendy

According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive Internet data over regular telephone lines with speeds much higher than is currently possible.
A. with speeds much higher than is
is - singular verb. Speeds - plural subject.

B. with speeds that are much higher than are
that are is redundant (that = speed).
Moreover, Companies receive data at speeds ...
They received us with open arms.

C. at much higher speeds as are
higher....than is correct; higher ...as is not correct.

D. at much higher speeds than that
A verb is required after than to support the phrase 'currently possible' and it should be plural. That would not help in this case.

E. at speeds much higher than are
WINS