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The study, called the National Lung Screening Trial, focused

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The study, called the National Lung Screening Trial, focused [#permalink] New post 08 Oct 2012, 03:24
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A
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C
D
E

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61% (01:49) correct 39% (00:55) wrong based on 77 sessions
The study, called the National Lung Screening Trial, focused on a specific high‐risk group: 53,000 current and former heavy smokers, aging from 55 to 74, which had smoked for at least 30 pack‐years
A. group: 53,000 current and former heavy smokers, aging from 55 to 74, which had smoked for at least 30 pack‐years
B. group: 53,000 current and former heavy smokers, aged 55 to 74, that had smoked for at least 30 pack‐years
C. group: 53,000 current and former heavy smokers, aged 55 to 74, who smoked for at least 30 pack‐years
D. group: 53,000 current and former heavy smokers, aged 55 to 74, who had smoked for at least 30 pack‐years
E. group: 53,000 current and former heavy smokers, who were aged 55 to 74,and who had smoked for higher than at least 30 pack‐years
[Reveal] Spoiler: OA

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Last edited by getgyan on 08 Oct 2012, 19:30, edited 1 time in total.
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Re: The study, called the National Lung Screening [#permalink] New post 08 Oct 2012, 09:51
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There are only two potential candidate for the correct choice are choice C and choice D.

In the non-underlined part, the study focused (simple past). So the subjects of the studies must "had smoked", smoking before the study progress.

So, choice D is the correct one.
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Re: The study, called the National Lung Screening [#permalink] New post 08 Oct 2012, 03:49
getgyan wrote:
The study, called the National Lung Screening Trial, focused on a specific high‐risk group: 53,000 current and former heavy smokers, aging from 55 to 74, which had smoked for at least 30 pack‐years
A. group: 53,000 current and former heavy smokers, aging from 55 to 74, which had smoked for at least 30 pack‐years
B. group: 53,000 current and former heavy smokers, aged 55 to 74, that had smoked for at least 30 pack‐years
C. group: 53,000 current and former heavy smokers, aged 55 to 74, who smoked for at least 30 pack‐years
D. group: 53,000 current and former heavy smokers, aged 55 to 74, who had smoked for at least 30 pack‐years
E. group: 53,000 current and former heavy smokers, who were aged 55 to 74,and who had smoked for higher than at least 30 pack‐years


Between C and D, have to go with D. The past perfect seems necessary.
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Re: The study, called the National Lung Screening [#permalink] New post 08 Oct 2012, 08:40
who smoked for atleast 30 pack years, clearly shows it is preceding the selection, hence I feel there is no need for past perfect..
My Choice is C, but fingers crossed..

Official answer please

Last edited by Rajesh560 on 08 Oct 2012, 08:53, edited 1 time in total.
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Re: The study, called the National Lung Screening [#permalink] New post 08 Oct 2012, 08:49
The study, called the National Lung Screening Trial, focused on a specific high‐risk group: 53,000 current and former heavy smokers, aging from 55 to 74, which had smoked for at least 30 pack‐years
A. group: 53,000 current and former heavy smokers, aging from 55 to 74, which had smoked for at least 30 pack‐years
B. group: 53,000 current and former heavy smokers, aged 55 to 74, that had smoked for at least 30 pack‐years
C. group: 53,000 current and former heavy smokers, aged 55 to 74, who smoked for at least 30 pack‐years
D. group: 53,000 current and former heavy smokers, aged 55 to 74, who had smoked for at least 30 pack‐years
E. group: 53,000 current and former heavy smokers, who were aged 55 to 74,and who had smoked for higher than at least 30 pack‐years

aging from is incorrect =? Eliminate A , Who were aged seems to suggest somebody aged them and it was not a natural process => Eliminate E. that is not the correct pronoun here = > Eliminate B .Since this sentence talks about a study which definitely occurred in the past we need past perfect to establish a time sequence here. D wins.
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Re: The study, called the National Lung Screening [#permalink] New post 08 Oct 2012, 19:33
+1 D

OE
A – "aging" distorts the meaning of the sentence. The use of "which' is incorrect.
B – "that" incorrectly refers to "smokers", the correct pronoun should be "who".
C – We need the past perfect tense "had" since the sentence talks about two things occurring at different time periods in the past
E – awkward and wordy construction. Use of "higher than" is also awkward

:-D
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Re: The study, called the National Lung Screening [#permalink] New post 30 Dec 2012, 04:06
tuanquang269 wrote:
There are only two potential candidate for the correct choice are choice C and choice D.

In the non-underlined part, the study focused (simple past). So the subjects of the studies must "had smoked", smoking before the study progress.

So, choice D is the correct one.



Hi
Shouldn t it even be "...who ve been smoking..."??
To me D seems wrong as well...
Because it says current and former so the action still continues for some of the group.

Thank you for your reply.

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Re: The study, called the National Lung Screening [#permalink] New post 31 Jul 2013, 20:41
R26 wrote:
tuanquang269 wrote:
There are only two potential candidate for the correct choice are choice C and choice D.

In the non-underlined part, the study focused (simple past). So the subjects of the studies must "had smoked", smoking before the study progress.

So, choice D is the correct one.



Hi
Shouldn t it even be "...who ve been smoking..."??
To me D seems wrong as well...
Because it says current and former so the action still continues for some of the group.

Thank you for your reply.

R26

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Yes but here you arr using current and former, so we need to determine whats true for both, for former smokers its not true they have been smoking, and for current smokers who had smoked is also true and who have been also true. So the overlapping part should be considered.

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Re: The study, called the National Lung Screening Trial, focused [#permalink] New post 24 Dec 2013, 03:44
D,

I came down to D and E.

D. group: 53,000 current and former heavy smokers, aged 55 to 74, who had smoked for at least 30 pack‐years
E. group: 53,000 current and former heavy smokers, who were aged 55 to 74,and who had smoked for higher than at least 30 pack‐years

E seems wrong, because "higher than" and "least" will not go along.
Either you say higher than X or at least X.
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Re: The study, called the National Lung Screening Trial, focused   [#permalink] 24 Dec 2013, 03:44
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