求解pre中的比较题

oovictoroo

Despite recent increases in sales and cash flow that have propelled automobile companies' common stocks to new highs, several industry analysts expect automakers, in order to conserve cash, to set dividends more conservatively than they were

A.to set dividends more conservatively than they were

B.to set dividends more conservatively than they have been

C.to be more conservative than they have been in setting dividends

D.that they will be more conservative than they were in setting dividends

E.  that they will be more conservative than they have been to set dividends
Key: c
看到aeoluseros等童鞋给的B的解释是应该在have been 后面加上setting或改为have set才对。。。

有没有哪位好心的给解释下为什么要补充上这个才对啊？前面不是已经有to set dividends了么？？

比较题让人很头疼啊。。。。大家有什么想法一起来讨论下撒。。。

llqq1220

如果不加比较对象错误
就比如 i eat more apples than you (do)
如果不加DO，意思就成了我吃的苹果比吃的你多

mandybabay

是不是如果不加before，那么than前后就是一个将来的时态（to set）和一个系动词比，但是如果加了before，就是一个将来的情况和一个过去的情况比。。。。其实也不很清楚唉

supercury

B试图比较状语：to do something more xxx than ....

此外，这里无表达进行时的意思，所以不能have been doing (like you mentioned)...

如果你非要改B, 个人认为：to set d more con... than HOW they have SET DIVIDENDS / THOSE

but, 这样的话，gmat一定认为不好，因为太太太wordy

sxf112233

其实比较很简单，
如果是主谓的句子，没有宾语，可以直接加比较的。不会歧义。
如果是主谓宾全的句子，则要分很多情况。如果主语比较，则A do sth than B do .是正解。
放到这题里边，set dividends more conservatly than ....
因为这里是实习动词set，所以than后面应该是用do..然后到底是怎么样要看具体语境的时态，比如这题。
再举个例子，the car is more efficient for (反正是有宾语)...than bike is。
因为这里是Is，是be动词，所以than后面用is ,are ,was, were,具体也要看语境时态呢，。
但是大结构是这样的。。。
我觉得你在这里困惑 不知道是不是
哈哈哈哈

oovictoroo

谢谢楼上的解释!@!