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# While an extensive amount of research into the cause of

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Manager
Joined: 30 Jun 2004
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Location: Singapore
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While an extensive amount of research into the cause of [#permalink]

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25 Apr 2010, 21:50
00:00

Difficulty:

5% (low)

Question Stats:

91% (01:37) correct 9% (00:42) wrong based on 55 sessions

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While an extensive amount of research into the cause of acoustic neuromas have proven unsuccessful, doctors have developed new surgical options that have dramatically increased patients' survival rates.

(A)amount of research into the cause of acoustic neuromas have proven unsuccessful

(B)amount of research into the cause of acoustic neuromas has proven unsuccessful

(C)quantity of research into the cause of acoustic neuromas have proven to be unsuccessful

(D)cause research into acoustic neuromas has proven unsuccessful

(E)amount of research has proven unsuccessful into the cause of acoustic
neuromas
[Reveal] Spoiler: OA
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Manager
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Re: While an extensive amount of research into the cause of [#permalink]

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23 Dec 2015, 09:03
I vote for B.

This is a Kaplan 800 question. Fisrt issue is amount of reaserch, it is singular so look for HAS, than modifier issue - into the cause of acoustic neuromas shoud modify REASERCH and need to be next to it.

Experts are welcome with any sugestions to approve or fix my reasoning.
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Re: While an extensive amount of research into the cause of [#permalink]

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23 Dec 2015, 10:07
IMHO (B) as well !!
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Manager
Joined: 24 Jul 2014
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WE: Information Technology (Computer Software)
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Re: While an extensive amount of research into the cause of [#permalink]

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04 Jan 2016, 10:05
B for me
Subject is singular.
So 'has' is the right option
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Re: While an extensive amount of research into the cause of   [#permalink] 04 Jan 2016, 10:05
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