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# Scientists are currently trying to determine the extent to

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CEO
Joined: 20 Nov 2005
Posts: 2802
Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
Scientists are currently trying to determine the extent to  [#permalink]

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23 Feb 2006, 03:11
1
4
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Difficulty:

(N/A)

Question Stats:

68% (00:27) correct 32% (00:34) wrong based on 128 sessions

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Scientists are currently trying to determine the extent to which tectonic plates have been shifted from their previous positions by earthquakes and other similar phenomena.

A. to which tectonic plates have been shifted
B. to which tectonic plates have shifted
C. of the shift of tectonic plates
D. of tectonic plate shifting
E. that tectonic plates have been shifted

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SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

Director
Joined: 17 Dec 2005
Posts: 533
Location: Germany

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23 Feb 2006, 03:22
hm...

the by indicates that we need passive voice, so either A or E in this case

I think it's E
VP
Joined: 07 Nov 2005
Posts: 1045
Location: India

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23 Feb 2006, 03:49
1
A it is for sure.

'by' suggests the sentence is in passive voice hence 'have been shifted............. by '
the plates have been shifted BY THE earthquake,therefore A.
Manager
Joined: 27 Jan 2006
Posts: 99
Location: Barcelona

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23 Feb 2006, 05:03
The scientists are presently determining .... something that begun in the past and has been continuing... due to some reason.
Requires a present perfect continous... "Have Been"
and hence it is A.
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Director
Joined: 17 Dec 2005
Posts: 533
Location: Germany

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23 Feb 2006, 05:03
but why co you choose "the extent to which", rather than "extent that" ?
Director
Joined: 13 Nov 2003
Posts: 772
Location: BULGARIA

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23 Feb 2006, 07:19
B) is wrong cause tectonic plates can not move by themselves
hope that helps
GMAT Club Legend
Joined: 29 Jan 2005
Posts: 5022

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23 Feb 2006, 08:02
El Torro wrote:
The scientists are presently determining .... something that begun in the past and has been continuing... due to some reason.
Requires a present perfect continous... "Have Been"
and hence it is A.

arriba arriba el toro!! Nice explanation

Choose (A) and click confirm...
Intern
Joined: 22 Jan 2005
Posts: 35
Location: New York, NY

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23 Feb 2006, 13:29
another one for A

Extent to is the correct idiom, extent of and extent that are incorrect.
CEO
Joined: 20 Nov 2005
Posts: 2802
Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008

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23 Feb 2006, 14:01
GMATT73 wrote:
El Torro wrote:
The scientists are presently determining .... something that begun in the past and has been continuing... due to some reason.
Requires a present perfect continous..
. "Have Been"
and hence it is A.

arriba arriba el toro!! Nice explanation

Choose (A) and click confirm...

If this is the case (Bold part above), then shouldn't we be using "have been shifting"???

I think BG is right on target. B) is wrong cause tectonic plates can not move by themselves.

BTW OA is A.
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SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

Intern
Joined: 22 Sep 2005
Posts: 40

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24 Feb 2006, 14:16
I think its A

i agree with ps_dahiya, 'have been' is needed because, as mentioned before, the plates are being shifted by earthquakes, they are not sifting themselves.. i dont think 'have been' is needed here because of the explanation given by el torro.

El Torro wrote:
The scientists are presently determining .... something that begun in the past and has been continuing... due to some reason.
Requires a present perfect continous... "Have Been"
and hence it is A.
Manager
Joined: 22 Nov 2005
Posts: 54

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26 Feb 2006, 02:22
1
A

A. to which tectonic plates have been shifted
--> correct the plates are shifted by something else....
B. to which tectonic plates have shifted
--> gives impression that tectonic plates are shifting by themselves
C. of the shift of tectonic plates
--> I agree... "extent of" not correct
D. of tectonic plate shifting
--> I agree... "extent of" not correct
E. that tectonic plates have been shifted
--> I agree... "extent that" not correct
Manager
Joined: 29 Feb 2016
Posts: 102
Location: India
GMAT 1: 700 Q49 V35
GPA: 3
Re: Scientists are currently trying to determine the extent to  [#permalink]

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11 Nov 2017, 10:39
ps_dahiya wrote:
Scientists are currently trying to determine the extent to which tectonic plates have been shifted from their previous positions by earthquakes and other similar phenomena.

A. to which tectonic plates have been shifted
B. to which tectonic plates have shifted
C. of the shift of tectonic plates
D. of tectonic plate shifting
E. that tectonic plates have been shifted

but the right idiom is "extent of" !!!!!!!!!!!!!!!!!!!!!!!!
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Board of Directors
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4095
Location: India
GPA: 3.5
Re: Scientists are currently trying to determine the extent to  [#permalink]

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11 Nov 2017, 11:59
sumanainampudi wrote:
but the right idiom is "extent of" !!!!!!!!!!!!!!!!!!!!!!!!

the extent to which = the degree to which something happens or is likely to happen

to the extent of = so strongly that

Both are correct , it depends on the usage...
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Manager
Joined: 08 Jan 2018
Posts: 240
Location: United States (ID)
GPA: 3.33
WE: Accounting (Accounting)
Re: Scientists are currently trying to determine the extent to  [#permalink]

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05 Feb 2018, 18:34
normally, ones will say the scope has shifted in the solutions of many gmat questions.
However, in this question, passive voice, which is not preferred by gmat, must be used b/c of the word "by earthquakes"
Re: Scientists are currently trying to determine the extent to &nbs [#permalink] 05 Feb 2018, 18:34
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