Modern inventions such as the pneumatic drill may seem to : GMAT Sentence Correction (SC)
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# Modern inventions such as the pneumatic drill may seem to

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Modern inventions such as the pneumatic drill may seem to [#permalink]

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11 Apr 2012, 19:03
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Difficulty:

25% (medium)

Question Stats:

67% (01:54) correct 33% (00:58) wrong based on 90 sessions

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Modern inventions such as the pneumatic drill may seem to have improved the work conditions of manual laborers, but in fact, have increased
the incidence of health hazards such as silicosis because it has aggravated the dust hazard involved in excavation and demolition.

(A) have increased the incidence of health hazards such as silicosis because it has aggravated the dust hazard
(B) has increased the incidence of health hazards such as silicosis because it has aggravated the dust hazard
(C) have increased the incidence of health hazards such as silicosis because they have aggravated the dust hazard
(D) increased the incidence of health hazards such as silicosis because they aggravated the dust hazard
(E) increased the incidence of health hazards such as silicosis because of aggravating the dust hazard

i thgt after. the sentence is just talking about pneuumatic drill and hence all the verbs needs to be singular...
Modern inventions such as pneumatic drill .....
[Reveal] Spoiler: OA
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Re: Modern inventions such as the pneumatic drill [#permalink]

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11 Apr 2012, 20:46
The subject is actually "modern inventions" not pneumonic drilling.

Consider the following example . . . "Certain lakers such as Kobe Bryant HAVE played in the nba finals." we wouldn't say "certain lakers such as Kobe Bryant has played in the nba finals"

Does that example make sense?
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Re: Modern inventions such as the pneumatic drill [#permalink]

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11 Apr 2012, 20:50
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The pneumatic drill is an example of modern inventions. Here the author is talking about modern inventions and not pneumatic drill in particular

a. have increased ... has aggravated - subject verb disagreement.
b. has increase... has aggravated - subject verb disagreement
c. correct
d. Missing verb
e. missing verb
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Re: Modern inventions such as the pneumatic drill [#permalink]

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12 Apr 2012, 00:57
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(A) have increased the incidence of health hazards such as silicosis because it has aggravated the dust hazard
S-V agreement
(B) has increased the incidence of health hazards such as silicosis because it has aggravated the dust hazard
S-V agreement
(C) have increased the incidence of health hazards such as silicosis because they have aggravated the dust hazard
(D) increased the incidence of health hazards such as silicosis because they aggravated the dust hazard
Seem to + infinitive
(E) increased the incidence of health hazards such as silicosis because of aggravating the dust hazard
Seem to + infinitive; Awkward
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Re: Modern inventions such as the pneumatic drill [#permalink]

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13 Apr 2012, 01:19
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Go through the construction :

Modern inventions may seem to have done X, but in fact, have done Y (subject is Plural inventions)
A/B/D/E are out

C is correct

Hope this clarifies..!!
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Re: Modern inventions such as the pneumatic drill may seem to [#permalink]

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13 May 2014, 19:48
Can't "They" in option C refer to "Workers"

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Re: Modern inventions such as the pneumatic drill may seem to [#permalink]

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14 May 2014, 09:50
282552 wrote:
Can't "They" in option C refer to "Workers"

Same confusion.
I prefer the agreement with the meaning but not the tense.
Re: Modern inventions such as the pneumatic drill may seem to   [#permalink] 14 May 2014, 09:50
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