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The possible long-term health risks to airline personnel who [#permalink]
 20 Apr 2012, 04:00
Question Stats:
80% (01:00) correct
19% (01:27) wrong based on 0 sessions
The possible long-term health risks to airline personnel who repeatedly cross multiple time zones has been a concern since the first jet transports went into service in the 1950s. A)who repeatedly cross multiple time zones has been a concern since the first jet transports went B)who are repeatedly crossing multiple time zones has been a concern since the first jet transports that went C)who repeatedly cross multiple time zones have been a concern since the first jet transports went. D)repeatedly crossing multiple time zones has been a concern since the first jet transports went E)repeatedly crossing multiple timezones have been a concern since the first jet transports going
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Last edited by hfbamafan on 20 Apr 2012, 11:09, edited 1 time in total.
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Re: the possible long-term health risks to airline personnel [#permalink]
20 Apr 2012, 06:52
I choose D.
Step 1. Subject verb agreement. Here subject is 'health risks' which is plural. So plural verb.
So look for ans choices with 'have been'
So A, B and D are out
Step 2. In C, 'who are repeatedly cross' is wrong. So D is correct.
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Re: the possible long-term health risks to airline personnel [#permalink]
20 Apr 2012, 11:01
aa.. missed the plural of has vs. have .. D definitely looks good.
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Re: the possible long-term health risks to airline personnel [#permalink]
20 Apr 2012, 11:10
Transposing has not been good for me had to retype answer C because I confused the part. I will give time to answer and post OA. I am so SORRY!
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Re: the possible long-term health risks to airline personnel [#permalink]
20 Apr 2012, 15:47
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Re: the possible long-term health risks to airline personnel [#permalink]
25 Apr 2012, 23:09
C is the answer. Since risks - plural we need to use have been a concern. the only answer choices are c and e, but in e the last underlined word going is wrong, so i am going with C
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Re: the possible long-term health risks to airline personnel [#permalink]
26 Apr 2012, 02:05
hfbamafan wrote: The possible long-term health risks to airline personnel who repeatedly cross multiple time zones has been a concern since the first jet transports went into service in the 1950s.
A)who repeatedly cross multiple time zones has been a concern since the first jet transports went
B)who are repeatedly crossing multiple time zones has been a concern since the first jet transports that went
C)who repeatedly cross multiple time zones have been a concern since the first jet transports went.
D)repeatedly crossing multiple time zones has been a concern since the first jet transports went
E)repeatedly crossing multiple timezones have been a concern since the first jet transports going I choosed C. It is correct in "have" and uses cross in present simple (usual action).
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Manager
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Re: the possible long-term health risks to airline personnel [#permalink]
26 Apr 2012, 02:09
Sorry I thought I put an OA in earlier. OA: C
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Re: the possible long-term health risks to airline personnel [#permalink]
28 Jul 2012, 03:53
i am confused of using "since" here. as far i know since is used in present perfect tense. but here since is used in past tense. am i missing something?? please help
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Re: the possible long-term health risks to airline personnel [#permalink]
30 Jul 2012, 02:44
hfbamafan wrote: The possible long-term health risks to airline personnel who repeatedly cross multiple time zones has been a concern since the first jet transports went into service in the 1950s.
A)who repeatedly cross multiple time zones has been a concern since the first jet transports went
B)who are repeatedly crossing multiple time zones has been a concern since the first jet transports that went
C)who repeatedly cross multiple time zones have been a concern since the first jet transports went.
D)repeatedly crossing multiple time zones has been a concern since the first jet transports went
E)repeatedly crossing multiple timezones have been a concern since the first jet transports going S-V agreement issue, "risks" will take "have" A,B & D eliminated C vs. E E: "...jet transports going" awkward & wrong structure. So. C be it!
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Re: the possible long-term health risks to airline personnel [#permalink]
30 Jul 2012, 04:12
Meaning;-The statement is dealing about the "risks"associated with an airline personal(in specific) so it is using "airline personal"not" airline personals" . "Risks" has got its conjugate verb agreement with "have been",not "has been"so (B) & (D) are out. (E) is wrong because adverbial modifier "repeatedly"is modifying the verb "crossing" which is not needed (because repeatedly will change the meaning which will say that "its a normal process-often/usual" AND if it was usual/often then we should have used "airline personals"(in general)not "airline personal" (specifically) BUT what is needed is a "who"which can refer to "airline personal" ALSO "went" is preferred over going to stay streamlined to the tense structure.
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Re: the possible long-term health risks to airline personnel [#permalink]
30 Jul 2012, 10:13
Hi,
I think its C.
Who Repeatedly cross - Must use Present Simple as we are talking about a condition.
"Health Risks" should take "Have"
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Re: the possible long-term health risks to airline personnel
[#permalink]
30 Jul 2012, 10:13
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