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Before scientists learned how to make a synthetic growth [#permalink]
 20 Mar 2011, 08:48
Question Stats:
20% (01:54) correct
80% (00:55) wrong based on 0 sessions
Before scientists learned how to make a synthetic growth hormone, removing it painstakingly in small amounts from the pituitary glands of human cadavers.
A. scientists learned how to make a synthetic growth hormone, removing it painstakingly
B. scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly C. scientist learned how to synthesize the growth hormone, it had to be painstakingly removed
D. learning how to make a synthetic growth hormone, scientists had to remove it painstakingly
E. Learning how to synthesize the growth hormone, it have to be painstakingly removed by scientists
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Re: synthetic growth hormone [#permalink]
20 Mar 2011, 09:29
Take C for correct tense Posted from my mobile device 
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Re: synthetic growth hormone [#permalink]
20 Mar 2011, 09:53
One factor tht has to be kept in mind is that the text doesn’t indicate, that it is the scientists who removed the synthetic hormone prior to leaning how to synthesize it. It could have been any body, So choices that state that the scientists had to remove it, distort the meaning. A. scientists learned how to make a synthetic growth hormone, removing it painstakingly –--- A is a fragment with the main clause lacking a verb; removing is not a verb; it is present participle B. scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly --- distorts the meaning C. scientist learned how to synthesize the growth hormone, it had to be painstakingly removed --- correct choice. D. learning how to make a synthetic growth hormone, scientists had to remove it painstakingly --- distorts the meaning E. Learning how to synthesize the growth hormone, it have to be painstakingly removed by scientists --- it have to be --- SV agreement problem
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Re: synthetic growth hormone [#permalink]
20 Mar 2011, 12:07
daagh I based elimination solely on "before". This keyword does sequencing. Hence both the events should be in simple past tense. Pls verify if this reasoning is correct. thanks daagh wrote: One factor tht has to be kept in mind is that the text doesn’t indicate, that it is the scientists who removed the synthetic hormone prior to leaning how to synthesize it. It could have been any body, So choices that state that the scientists had to remove it, distort the meaning.
A. scientists learned how to make a synthetic growth hormone, removing it painstakingly –--- A is a fragment with the main clause lacking a verb; removing is not a verb; it is present participle
B. scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly --- distorts the meaning
C. scientist learned how to synthesize the growth hormone, it had to be painstakingly removed --- correct choice.
D. learning how to make a synthetic growth hormone, scientists had to remove it painstakingly --- distorts the meaning
E. Learning how to synthesize the growth hormone, it have to be painstakingly removed by scientists --- it have to be --- SV agreement problem
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Re: synthetic growth hormone [#permalink]
20 Mar 2011, 17:15
Both C and D use simple past. (had to remove it, and it had to be removed are both simple past tenses. In fact D is even more crisp and elegant than C, although it is faulting on the intent? How will you now eliminate D solely on verb tense?
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Alicia Helle, an online student at the UW, "Obtaining my degree online has been a blessing. With two small children, I am able to work when it is convenient for my family and me. I have nothing but positive comments and experiences from my time at UW-Stout.”
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Re: synthetic growth hormone [#permalink]
20 Mar 2011, 17:18
D is not clear. WHO is learning? its breaking the sentence in a way its no longer make the same sense as the original one.
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Re: synthetic growth hormone [#permalink]
20 Mar 2011, 18:03
it should be C, the 'it' in the second statement is refrerring to hormone, plus tense is matching in both statement.
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Re: synthetic growth hormone [#permalink]
20 Mar 2011, 21:14
Thanks guys. You are right on !  Posted from my mobile device
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Re: synthetic growth hormone [#permalink]
03 Apr 2011, 01:39
OA.. please... "it" in C does not have a clear reference (Scientist or hormone). D, although seems awkward, is the correct choice
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Re: synthetic growth hormone [#permalink]
03 Apr 2011, 23:50
narrowed down to C and D
D is awkward, and C correctly touches "it" with the antecedent
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Re: synthetic growth hormone [#permalink]
04 Apr 2011, 03:01
C for me... Its the only one that conveys the right sense...
B- Incorrect.. No requirement of past perfect tense coz it will distort the meaning... moreover use of the word "before' discourages the use of past perfect tense...
A-Incorrect modifier.. The question provides us with a contrast w.r.t. earlier and present conditions
D-Learning is incorrect..
E- same as D
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Re: synthetic growth hormone [#permalink]
04 Apr 2011, 06:53
Initially went with D, just because "scientist" is not correct in choice C. The sentence would read "Before scientist learned how..."
It should be "scientists" or "the scientist"
C would be correct if this were the case and it read 'scientists.'
ONell- can you confirm if there is a typo in choice C? I suspect there is as choice C is correct on all other accounts
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Re: synthetic growth hormone [#permalink]
27 Jul 2011, 09:18
"learning" in D incorrectly signifies ongoing condition. It should be simple past. Hence C is the correct choice.
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Re: synthetic growth hormone
[#permalink]
27 Jul 2011, 09:18
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