急！请教NN！GWD-TN15的第1和2题！

forava

1. GWD21-Q1:

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



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2. GWD-18-Q11


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

这两题分别选E 和 A

我觉得第一题比较的应该是名词speeds,那右边为什么要补一个are呢？这样就成名词和句子比了呀！

第二题我觉得比较的左边是一个状语in no other historical sighting，这样的话貌似答案应该是C啊，就是状语和状语比，可答案为什么又加了did？并且转换成了名词形式？

我真的很不理解在比较的时候，什么情况下要补充动词（do或be）？？求NN们指点！！不胜感激！！！

forava

这个问题仍然困扰我啊！所以自己顶啦！各位路过同胞们也帮我说说啊！

forava

因为第一题比较的是telephone lines 而第二题是围绕助于comet的比较，要明确主谓宾后再进行比较。