Industrialization and modern methods of insect control have : GMAT Sentence Correction (SC)
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 20 Jan 2017, 17:18

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Industrialization and modern methods of insect control have

Author Message
TAGS:

### Hide Tags

Director
Joined: 01 Aug 2008
Posts: 768
Followers: 4

Kudos [?]: 625 [3] , given: 99

Industrialization and modern methods of insect control have [#permalink]

### Show Tags

12 Aug 2009, 16:03
3
KUDOS
13
This post was
BOOKMARKED
00:00

Difficulty:

55% (hard)

Question Stats:

58% (01:56) correct 42% (01:06) wrong based on 575 sessions

### HideShow timer Statistics

Industrialization and modern methods of insect control have improved the standard of living around the globe while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually unregulated since they were developed more than 50 years ago.
A. while at the same time they have introduced some 100,000 dangerous chemical pollutants, having
B. while at the same time introducing some 100,000 dangerous chemical pollutants that have
C. while they have introduced some 100,000 dangerous chemical pollutants at the same time, which have
D. but introducing some 100,000 dangerous chemical pollutants at the same time that have
E. but at the same time introducing some 100,000 dangerous chemical pollutants, having

[Reveal] Spoiler: OA
If you have any questions
New!
Intern
Joined: 10 Jul 2009
Posts: 47
Followers: 1

Kudos [?]: 20 [3] , given: 4

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

12 Aug 2009, 20:37
3
KUDOS
ugimba wrote:
Industrialization and modern methods of insect control have improved the standard of living around the globe while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually unregulated since they were developed more than 50 years ago.
A. while at the same time they have introduced some 100,000 dangerous chemical pollutants, having
B. while at the same time introducing some 100,000 dangerous chemical pollutants that have
C. while they have introduced some 100,000 dangerous chemical pollutants at the same time, which have
D. but introducing some 100,000 dangerous chemical pollutants at the same time that have
E. but at the same time introducing some 100,000 dangerous chemical pollutants, having

To me a structure of the sentence has the following logic:

Industrialization and modern methods...have improved the standard of living...while introducing dangerous chemical pollutants...[polutants] have gone unregulated since they (pollutants) were developed...

using 2/3 rule:
While vs. but - While wins. so we can eliminate D&E
In C "which" modifies time
A says that "Industrialization and methods of insects contorol..having gone (sounding awkward at least) unregulated." I think the meaning is distorted.

So B wins.
Senior Manager
Joined: 21 Jul 2009
Posts: 265
Location: New York, NY
Followers: 3

Kudos [?]: 108 [0], given: 23

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

11 Sep 2009, 07:29
Going with B on this one.

A & E. Having is very akward.
C. There's no clear referent to they.
D. But introducing - very bad.
SVP
Joined: 16 Jul 2009
Posts: 1628
Schools: CBS
WE 1: 4 years (Consulting)
Followers: 42

Kudos [?]: 1057 [0], given: 2

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

13 Jun 2010, 07:20
while at the same time is not wordy??
Thanks,
_________________

The sky is the limit
800 is the limit

GMAT Club Premium Membership - big benefits and savings

SVP
Joined: 16 Jul 2009
Posts: 1628
Schools: CBS
WE 1: 4 years (Consulting)
Followers: 42

Kudos [?]: 1057 [0], given: 2

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

14 Jun 2010, 10:57
noboru wrote:
while at the same time is not wordy??
Thanks,

I mean redundant. Could anybody please clarify?
_________________

The sky is the limit
800 is the limit

GMAT Club Premium Membership - big benefits and savings

SVP
Joined: 16 Jul 2009
Posts: 1628
Schools: CBS
WE 1: 4 years (Consulting)
Followers: 42

Kudos [?]: 1057 [0], given: 2

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

19 Jun 2010, 02:29
noboru wrote:
noboru wrote:
while at the same time is not wordy??
Thanks,

I mean redundant. Could anybody please clarify?

Nobody is going to answer this??
_________________

The sky is the limit
800 is the limit

GMAT Club Premium Membership - big benefits and savings

Manager
Joined: 06 Mar 2010
Posts: 107
Followers: 2

Kudos [?]: 5 [0], given: 11

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

30 Jun 2010, 07:38
Its close between B & D.
I will go with B as 'that' clause in the end modifies pollutants that have gone unregulated.
'that' clause modifies time in D instead of pollutants located in the end of sentence.
Senior Manager
Joined: 08 Dec 2009
Posts: 420
Followers: 5

Kudos [?]: 108 [1] , given: 26

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

30 Jun 2010, 09:25
1
KUDOS
1
This post was
BOOKMARKED
noboru wrote:
noboru wrote:
noboru wrote:
while at the same time is not wordy??
Thanks,

I mean redundant. Could anybody please clarify?

Nobody is going to answer this??

not redudant at all...

while (signals contrast) at the same time (signals 'in conjunction with') ... how's that redundant?
_________________

kudos if you like me (or my post)

Senior Manager
Joined: 08 Dec 2009
Posts: 420
Followers: 5

Kudos [?]: 108 [0], given: 26

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

30 Jun 2010, 09:29
tomirisk wrote:

using 2/3 rule:
While vs. but - While wins. so we can eliminate D&E

I wouldn't be on the 2/3 rule... i find it unreliable. don't eliminate "but" just because it showed up only 2 times. eliminate the answer choices based on other issues in the sentences.
_________________

kudos if you like me (or my post)

Intern
Status: fighting hard..
Joined: 12 Jul 2010
Posts: 29
Schools: ISB, Hass, Ross, NYU Stern
Followers: 0

Kudos [?]: 10 [0], given: 24

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

26 Nov 2010, 10:32
noboru wrote:
noboru wrote:
while at the same time is not wordy??
Thanks,

I mean redundant. Could anybody please clarify?

Here's my take on why A is not suitable:
Consider this part: "..while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually X.."
the problem with the modifier is that it can be taken to refer 'they have introduced'. If you read the stimulus carefully this ambiguity will become evident.
Remember, verb modifiers do not need to touch the verb that they modify.
In B, the modifier clearly refers to the noun chemical pollutant, which it is actually supposed to modify..

Hope this helps.
SVP
Joined: 16 Jul 2009
Posts: 1628
Schools: CBS
WE 1: 4 years (Consulting)
Followers: 42

Kudos [?]: 1057 [0], given: 2

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

26 Nov 2010, 11:51
OK, I agree with that, but...what does your explanation has to do with "while at the same time" being or not redundant?

Thanks!

naish wrote:
noboru wrote:
noboru wrote:
while at the same time is not wordy??
Thanks,

I mean redundant. Could anybody please clarify?

Here's my take on why A is not suitable:
Consider this part: "..while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually X.."
the problem with the modifier is that it can be taken to refer 'they have introduced'. If you read the stimulus carefully this ambiguity will become evident.
Remember, verb modifiers do not need to touch the verb that they modify.
In B, the modifier clearly refers to the noun chemical pollutant, which it is actually supposed to modify..

Hope this helps.

_________________

The sky is the limit
800 is the limit

GMAT Club Premium Membership - big benefits and savings

VP
Status: There is always something new !!
Affiliations: PMI,QAI Global,eXampleCG
Joined: 08 May 2009
Posts: 1353
Followers: 17

Kudos [?]: 240 [0], given: 10

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

02 Dec 2010, 21:52
Between B,C and D that has a clear referrant in B.Hence, B prevails.
_________________

Visit -- http://www.sustainable-sphere.com/
Promote Green Business,Sustainable Living and Green Earth !!

Manager
Joined: 23 Sep 2009
Posts: 151
Followers: 1

Kudos [?]: 96 [0], given: 37

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

02 Dec 2010, 22:27
I felt 'while' and 'same time' to be redundant....
So eliminated ABC....
Any thoughts?
_________________

Thanks,
VP

SVP
Joined: 16 Jul 2009
Posts: 1628
Schools: CBS
WE 1: 4 years (Consulting)
Followers: 42

Kudos [?]: 1057 [0], given: 2

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

06 Dec 2010, 10:13
vigneshpandi wrote:
I felt 'while' and 'same time' to be redundant....
So eliminated ABC....
Any thoughts?

_________________

The sky is the limit
800 is the limit

GMAT Club Premium Membership - big benefits and savings

Senior Manager
Joined: 30 Nov 2010
Posts: 263
Schools: UC Berkley, UCLA
Followers: 1

Kudos [?]: 93 [0], given: 66

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

07 Dec 2010, 07:54
ugimba wrote:
Industrialization and modern methods of insect control have improved the standard of living around the globe while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually unregulated since they were developed more than 50 years ago.
A. while at the same time they have introduced some 100,000 dangerous chemical pollutants, having
B. while at the same time introducing some 100,000 dangerous chemical pollutants that have
C. while they have introduced some 100,000 dangerous chemical pollutants at the same time, which have
D. but introducing some 100,000 dangerous chemical pollutants at the same time that have
E. but at the same time introducing some 100,000 dangerous chemical pollutants, having

" while at the same time they have introduced" in A they has no clear referent plus ...having... is not a good construction. B is the ans. The elimination of the rest of the choices has already been explained
_________________

Thank you for your kudoses Everyone!!!

"It always seems impossible until its done."
-Nelson Mandela

Senior Manager
Joined: 28 Aug 2010
Posts: 260
Followers: 6

Kudos [?]: 553 [0], given: 11

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

08 Feb 2011, 04:51
although b seems to be the best choice i feel it is not parallel "improved and introcucing" .....had it been while at the same time they have introduced some 100,000 dangerous chemical pollutants that have..would have been better
_________________

Gmat: everything-you-need-to-prepare-for-the-gmat-revised-77983.html
-------------------------------------------------------------------------------------------------
Ajit

Manager
Joined: 27 Oct 2010
Posts: 189
Followers: 1

Kudos [?]: 10 [0], given: 20

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

08 Feb 2011, 07:11
B seems to be the best

Posted from my mobile device
Manager
Joined: 14 Dec 2010
Posts: 218
Location: India
Concentration: Technology, Entrepreneurship
GMAT 1: 680 Q44 V39
Followers: 2

Kudos [?]: 36 [1] , given: 5

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

09 Feb 2011, 03:51
1
KUDOS
B for me. Even though B is not perfect, it is better than other options.
Manager
Joined: 27 Jun 2008
Posts: 85
Location: United States (AL)
Concentration: General Management, Technology
GMAT 1: 660 Q48 V34
WE: Consulting (Computer Software)
Followers: 1

Kudos [?]: 15 [0], given: 22

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

09 Feb 2011, 04:34
Clear 2-3 split -- but vs while.. while should be correct..

having is also incorrect,, between B&C, B wins..
Intern
Joined: 05 Aug 2011
Posts: 13
Followers: 0

Kudos [?]: 0 [0], given: 6

Re: Industrialization and modern methods of insect control have [#permalink]

### Show Tags

23 Mar 2012, 18:40
can someone explain why choice b is correct in terms of verb tenses? have improved vs. introducing?
Re: Industrialization and modern methods of insect control have   [#permalink] 23 Mar 2012, 18:40

Go to page    1   2    Next  [ 28 posts ]

Similar topics Replies Last post
Similar
Topics:
17 Computerization and modern methods of managing voter ... 14 06 Oct 2013, 15:51
5 In the 1880's, improved pest-control methods saved the 6 13 Jun 2012, 19:58
4 Many companies in the pollution control industry, which 14 15 Nov 2011, 19:58
4 Industrialization and modern methods of insect control have 10 12 Oct 2008, 20:17
Industrialization and modern methods of insect control have 6 07 Jul 2008, 15:43
Display posts from previous: Sort by