To develop more accurate population forecasts, demographers : GMAT Sentence Correction (SC)
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# To develop more accurate population forecasts, demographers

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Director
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To develop more accurate population forecasts, demographers [#permalink]

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08 Apr 2008, 00:50
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To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

A. have to know a great deal more than now about the social and economic

B. have to know a great deal more than they do now about the social and economical

C. would have to know a great deal more than they do now about the social and

economical

D. would have to know a great deal more than they do now about the social and

economic

E. would have to know a great deal more than now about the social and economical
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08 Apr 2008, 05:06
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D for me. BCE change meaning ("economical"). Between A and D - the "would" sounds more correct.
Senior Manager
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08 Apr 2008, 06:29
I was debating between B and D. I was leaning towards B because in order to accurately forecast something, you "HAVE" to know something.... and for some reason I found social and economical to go well rather than social and economic.

Hence B??!!
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08 Apr 2008, 07:53
is "would" necessary in these conditional statements?
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08 Apr 2008, 08:26
I would go with D. I believe you need a "would" here. Social and economic are parallel.
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08 Apr 2008, 08:59
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A-..great deal more than now...no
B-hmm..ok, lets see
C-sounds much better
D-economic is right --strongest so far
E-more than ..(thee do) now..no

I go with D.

prasannar wrote:
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

A. have to know a great deal more than now about the social and economic

B. have to know a great deal more than they do now about the social and economical

C. would have to know a great deal more than they do now about the social and

economical

D. would have to know a great deal more than they do now about the social and

economic

E. would have to know a great deal more than now about the social and economical
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08 Apr 2008, 10:03
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i really hate such SCs. The right choice ( that seems) usually has a trap in the end. Does the real GMAT have such traps as well. 1000SC is full of them.

D for me
Director
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09 Apr 2008, 05:27
OA is D

economical is awkward, thus B,C,E are out now between A&D

To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

would have to know a great deal more than they do now about the social and economic -> would indicates the future tense and "they do" is essential here
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Re: SC 30:24/30   [#permalink] 09 Apr 2008, 05:27
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