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# Before scientists learned how to make a synthetic growth

Author Message
SVP
Joined: 21 Jul 2006
Posts: 1513

Kudos [?]: 979 [0], given: 1

Before scientists learned how to make a synthetic growth [#permalink]

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26 Jan 2008, 09:58
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(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions

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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

c) scientists 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 had to be painstakingly removed by scientists

thanks

Kudos [?]: 979 [0], given: 1

SVP
Joined: 21 Jul 2006
Posts: 1513

Kudos [?]: 979 [0], given: 1

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26 Jan 2008, 10:40
OA is C. But I chose D because "scientists" was correctly placed right after the modifier. It is perfectly describing "scientists", but something else must be wrong with D that we haven't realised yet.

Kudos [?]: 979 [0], given: 1

Manager
Joined: 07 Dec 2006
Posts: 167

Kudos [?]: 101 [0], given: 0

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26 Jan 2008, 10:48
I think D sounds good.

a) scientists learned how to make a synthetic growth hormone, removing it painstakingly
: Unclear. Who remove it?

: No conjunction between 2 sentences.

c) scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
: Same problem as B. No conjunction.

d) learning how to make a synthetic growth hormone, scientists had to remove it painstakingly

e) learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists
: Wrong referent. "It" cant learn.

Kudos [?]: 101 [0], given: 0

Director
Joined: 30 Jun 2007
Posts: 781

Kudos [?]: 179 [0], given: 0

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26 Jan 2008, 20:35
This sentence has past perfect tense issue:

a) scientists learned how to make a synthetic growth hormone, removing it painstakingly (“removing” is working as modifier buy required a verb - eliminate it)

b) scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly. (Sentence has past perfect issue – one needs to be in a simple past – eliminate it)

c) scientists learned how to synthesize the growth hormone, it had to be painstakingly removed (This is correctly defining the past perfect – hold it)

d) learning how to make a synthetic growth hormone , scientists had to remove it painstakingly (why learning – eliminate it)

e) learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists (why learning – eliminate it)

Kudos [?]: 179 [0], given: 0

Re: SC: Scientists   [#permalink] 26 Jan 2008, 20:35
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