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# Many companies in the pollution control industry, which

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Many companies in the pollution control industry, which [#permalink]

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15 Nov 2011, 20:58
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3. Many companies in the pollution control industry, which until a few years ago has prospered on account of a national concern for environmental controls, has recently experienced sharp drops in sales and profits.

a. until a few years ago has prospered on account of a national concern for environmental controls, has
b. up until a few years ago, when prospering on account of a national concern for environmental controls, have
c. until a few yeas ago was propsering because of a national concern for environmental controls,have
d. up until a few yeards ago have prospered because of a national concern for environmental control,has
e. until a few years ago had prospered because of a national concern for environmental controls, has
[Reveal] Spoiler: OA
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Re: SC - Pls help - Q3 [#permalink]

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15 Nov 2011, 23:19
C for me.

Here is my logic.

First there is a SVA issue. Companies in the pollution control industry....have recently experienced.. So it needs to be have instead of has - this eliminates A, D, and E.

We read choice b and see that when prospering is incorrect - should be was prospering to be in SVA with the sentence. So that leaves us with only C.

Hope that helps.
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Re: SC - Pls help - Q3 [#permalink]

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16 Nov 2011, 05:18
u0422811 wrote:
C for me.

Here is my logic.

First there is a SVA issue. Companies in the pollution control industry....have recently experienced.. So it needs to be have instead of has - this eliminates A, D, and E.

We read choice b and see that when prospering is incorrect - should be was prospering to be in SVA with the sentence. So that leaves us with only C.

Hope that helps.

The first logic is correct ie the options will end with 'have'.
But for SVA shouldnt it be 'many companies...were prospering...'? IMO the option doesnt match up.
Am I right?
Also, where is this question from?

Posted from my mobile device
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Re: SC - Pls help - Q3 [#permalink]

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16 Nov 2011, 07:21
Hope that helps.[/quote]
The first logic is correct ie the options will end with 'have'.
But for SVA shouldnt it be 'many companies...were prospering...'? IMO the option doesnt match up.
Am I right?
Also, where is this question from?

Posted from my mobile device [/quote]

This is where i also got confused. Seems like the 'were prospering' modifier is for the industry. It wasn't intuitive or explicit.

I got these questions from the Jamboree question bank
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Re: SC - Pls help - Q3 [#permalink]

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16 Nov 2011, 08:56
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fivedaysleft wrote:
u0422811 wrote:
C for me.

Here is my logic.

First there is a SVA issue. Companies in the pollution control industry....have recently experienced.. So it needs to be have instead of has - this eliminates A, D, and E.

We read choice b and see that when prospering is incorrect - should be was prospering to be in SVA with the sentence. So that leaves us with only C.

Hope that helps.

The first logic is correct ie the options will end with 'have'.
But for SVA shouldnt it be 'many companies...were prospering...'? IMO the option doesnt match up.
Am I right?
Also, where is this question from?

Posted from my mobile device

Which makes the remainder of "until a few years ago...." refer to the industry not the companies. So it should be the industry was prospering not the industry were prospering.

Make sense?
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Re: SC - Pls help - Q3 [#permalink]

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26 Apr 2012, 07:56
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3. Many companies in the pollution control industry, which until a few years ago has prospered on account of a national concern for environmental controls, has recently experienced sharp drops in sales and profits.

a. until a few years ago has prospered on account of a national concern for environmental controls, has {need plural for companies}

b. up until a few years ago, when {When is used in reference to a specific time not a period}prospering on account of a national concern for environmental controls, have

c. until a few yeas ago was {correct use of was} propsering because of a national concern for environmental controls,have {Correct use of have}
d. up until a few yeards ago have prospered because of a national concern for environmental control,has {need plural for companies}

e. until a few years ago had prospered because of a national concern for environmental controls, has {need plural for companies}

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Re: SC - Pls help - Q3 [#permalink]

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28 Apr 2012, 22:31
Subject-verb agreement
and thank you hinkin
when {When is used in reference to a specific time not a period}
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Re: SC - Pls help - Q3 [#permalink]

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29 Apr 2012, 02:15
IMO, this is not a valid example . It is just not about SVA alone but there is also an element of comparison in it. In the original, we are comparing performance of the industry until few year’s ago with the performance of the companies recently. This shift of object is illogical. Per se, logically speaking, the companies, the subject of the clause, do two functions; first, they did well earlier and then have not not so well recently. If we mean to describe the industry’s profits, thenwe can straight away start with the industry, dropping the reference to the company’s altogether.

IMO, this is a faulty topic and no choice is tenable
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Re: SC - Pls help - Q3 [#permalink]

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30 Apr 2012, 00:53
Many companies in the pollution control industry, which until a few years ago has prospered on account of a national concern for environmental controls, has recently experienced sharp drops in sales and profits.

plural subj needs plural verb

the modifier is more clear here
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Re: SC - Pls help - Q3 [#permalink]

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30 Apr 2012, 06:55
hi bibli, what is the source of this qn?
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Re: Many companies in the pollution control industry, which [#permalink]

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03 Mar 2013, 12:53
Many companies in the pollution control industry, which until a few years ago has prospered on account of a national concern for environmental controls, has recently experienced sharp drops in sales and profits.

In above the c answers the question correctly. SVA issue leaves us with just B and C. Out of the two C is correct since the was refers to singular Pollution Control industry and have correctly refers back to Many Companies.

Bibli wrote:
3. Many companies in the pollution control industry, which until a few years ago has prospered on account of a national concern for environmental controls, has recently experienced sharp drops in sales and profits.

a. until a few years ago has prospered on account of a national concern for environmental controls, has
b. up until a few years ago, when prospering on account of a national concern for environmental controls, have
c. until a few yeas ago was propsering because of a national concern for environmental controls,have
d. up until a few yeards ago have prospered because of a national concern for environmental control,has
e. until a few years ago had prospered because of a national concern for environmental controls, has
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Re: Many companies in the pollution control industry, which [#permalink]

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03 Mar 2013, 13:00
Bibli wrote:
3. Many companies in the pollution control industry, which until a few years ago has prospered on account of a national concern for environmental controls, has recently experienced sharp drops in sales and profits.

a. until a few years ago has prospered on account of a national concern for environmental controls, has
b. up until a few years ago, when prospering on account of a national concern for environmental controls, have
c. until a few yeas ago was propsering because of a national concern for environmental controls,have
d. up until a few yeards ago have prospered because of a national concern for environmental control,has
e. until a few years ago had prospered because of a national concern for environmental controls, has

Choice A - SVA error
Choice B - Up until incorrect usage
Choice C - Correct usage of both verbs
Choice D - Up until incorrect usage
Choice E - incorrect verb
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Re: Many companies in the pollution control industry, which [#permalink]

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08 Nov 2014, 07:19
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Re: Many companies in the pollution control industry, which [#permalink]

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09 Jul 2016, 13:17
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Many companies in the pollution control industry, which [#permalink]

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10 Aug 2016, 14:02
u0422811 wrote:
C for me.

Here is my logic.

First there is a SVA issue. Companies in the pollution control industry....have recently experienced.. So it needs to be have instead of has - this eliminates A, D, and E.

We read choice b and see that when prospering is incorrect - should be was prospering to be in SVA with the sentence. So that leaves us with only C.

Hope that helps.

the 'which' takes the immediate preceeding noun i.e. 'control industry' -> hence 'was' is correct
Re: Many companies in the pollution control industry, which   [#permalink] 10 Aug 2016, 14:02
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# Many companies in the pollution control industry, which

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