大全305，一个没有答案的题

305

  FOR MANY TRAVELERS,CHARTER VACATIONS OFTEN TURN OUT TO COST CONSIDERABLY MORE THAN THEY ORIGINALLY SEEMED

A   they originally seemed

b  they originally seem to

C  they seemingly would cost originally

D it seemed originally

E  it originally seemed they would

答案有的说是A，有的说是E。应该是哪个呢？D和E中的it 是逻辑主语吧，可是在GMAT里，it可以无指代么？望NNS讲得梢微详细些吧。THX

A.

'it' cannot refer to 'vocationS'

补充：1)KAPLAN2001模拟测试第二套中一题:

Researchers are studying plastics that dissolve at different rates, and they are finding that the so-called 'quick disintegration' plastics are taking more time to deteriorate than they originally seemed.

a) they originally seemed

b) they seemed originally

c) it seemed that they would originally

d) it originally seemed

e) it originally seemed they would

这题答案是E 解释The tricky part here is choosing between 'they' and 'it'. 'They' would imply that the plastics themselves first seemed to do one thing, and then ended up duoing something else. The expletive 'it' - the pronoun that has no particular antecedent - makes more sense; it suggests simply that initial indications turned out to be misleading. Using 'it', it's necessary to include the phrase 'they would', to make it clear what seemed to be the case.

KAPLAN题中they originally seemed似乎只能省略to deteriorate但这样意思表达不对。

E中补全plastics are taking more time to deteriorate than it originally seemed they would take (time) to deteriorat

it seemed that的that可省。

这里好象又说的是E啊。NN，偶还是不懂呀

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欧认为 kaplan 解释有误。