求教朋友们一道有两个版本答案的GWD语法题~

lilliantianyi

下面这道题在两个版本的答案里是不一样的，请大家说说自己的看法啊，到底应该选哪个~~
GWD-8-Q41:
When drive-ins were at the height of their popularity in the late 1950’s, some 4,000 existed in the United States, but today there are less than one-quarter that many.
A.    there are less than one-quarter that many
B.    there are fewer than one-quarter as many
C.    there are fewer than one-quarter of that amount
D.    the number is less than one-quarter the amount
E.    it is less than one-quarter of that amount

TN-24里答案说是C，在另一个解释版的答案里说D，说D据说是因为amount 要修饰不可数名词，而D项中的主语已经变成number is，其他的都可以排除了。

云南

我觉得选D吧，一般见到there be的话，首先都是排除的，然后就排除了前三个，amount 这里指popularity,所以只能选D了，不知道对不对

lilliantianyi

我觉得选D吧，一般见到there be的话，首先都是排除的，然后就排除了前三个，amount 这里指popularity,所以只能选D了，不知道对不对

-- by 会员 云南 (2010/7/26 16:28:06)

估计答案还是偏向D，不过ls说的amount为什么会指popularity 呢？还是指drive-ins吧，否则前面怎么能加几分之几呢~~~

miller811

number + less 就已经错了
前面的some 4000 也说明了是可数名词