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Humans are better adapted for running than are other primates; a narro

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Humans are better adapted for running than are other primates; a narro [#permalink]

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New post 23 Sep 2016, 14:34
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A
B
C
D
E

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  45% (medium)

Question Stats:

58% (01:05) correct 42% (01:29) wrong based on 429 sessions

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Humans are better adapted for running than are other primates; a narrow waist and a midsection that can turn allow us to swing our arms and prevent us from zigzagging on the trail.

A. allow us to swing our arms and prevent
B. allows us to swing our arms and prevent
C. allows us to swing our arms and prevents.
D. is what allows us to swing our arms and prevents
E. allow us to swing our arms and to prevent

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Re: Humans are better adapted for running than are other primates; a narro [#permalink]

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New post 24 Sep 2016, 00:07
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We need a plural verb ‘allow’ for the plural subject of the clause after the semicolon. Drop B, C, and D. There is no need to repeat the infinitive marker’ to’ in as done in E. Therefore A.
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Re: Humans are better adapted for running than are other primates; a narro [#permalink]

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New post 24 Sep 2016, 10:35
AbdurRakib wrote:
Humans are better adapted for running than are other primates; a narrow waist and a midsection that can turn allow us to swing our arms and prevent us from zigzagging on the trail.

A. Allow us to swing our arms and prevent
B. Allows us to swing our arms and prevent
C. Allows us to swing our arms and prevents.
D. Is what allows us to swing our arms and prevents
E. Allow us to swing our arms and to prevent


Correct answer must be (A) , for the highlighted errors in other options as excellently explained by daagh ...
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Re: Humans are better adapted for running than are other primates; a narro [#permalink]

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New post 25 Sep 2016, 01:20
daagh wrote:
We need a plural verb ‘allow’ for the plural subject of the clause after the semicolon. Drop B, C, and D. There is no need to repeat the infinitive marker’ to’ in as done in E. Therefore A.



Daagh,

I chose E-Is it not more parallel-to X and to Y?
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Re: Humans are better adapted for running than are other primates; a narro [#permalink]

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New post 25 Sep 2016, 01:42
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KS15 wrote:
daagh wrote:
We need a plural verb ‘allow’ for the plural subject of the clause after the semicolon. Drop B, C, and D. There is no need to repeat the infinitive marker’ to’ in as done in E. Therefore A.



Daagh,

I chose E-Is it not more parallel-to X and to Y?


You are not going into the meaning.

We are given

a narrow waist and a midsection :
1. allow us to swing our arms
2. prevent us from zigzagging on the trail
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Re: Humans are better adapted for running than are other primates; a narro [#permalink]

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New post 23 May 2017, 04:04
AbdurRakib wrote:
Humans are better adapted for running than are other primates; a narrow waist and a midsection that can turn allow us to swing our arms and prevent us from zigzagging on the trail.

A. allow us to swing our arms and prevent
B. allows us to swing our arms and prevent
C. allows us to swing our arms and prevents.
D. is what allows us to swing our arms and prevents
E. allow us to swing our arms and to prevent


Taken from New York Times. [LINK]

Springlike ligaments and tendons in the feet and legs are crucial for running. (Our close relatives the chimpanzee and the ape don’t have them.) A narrow waist and a midsection that can turn allow us to swing our arms and prevent us from zigzagging on the trail. Humans also have a far more developed sense of balance, an advantage that keeps the head stable as we run. And most humans can store about 20 miles’ worth of glycogen in their muscles.
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Re: Humans are better adapted for running than are other primates; a narro [#permalink]

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New post 25 May 2017, 09:59
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Quote:
Humans are better adapted for running than are other primates; a narrow waist and a midsection that can turn allow us to swing our arms and prevent us from zigzagging on the trail.


If NYT reporters or even if their editors were to write GMAT, they may not have got beyond 500. Let me reproduce the relevant part from the horse's' mouth.

Quote:
Spring like ligaments and tendons in the feet and legs are crucial for running. (Our close relatives the chimpanzee and the ape don’t have them.) A narrow waist and a midsection that can turn allow us to swing our arms and prevent us from zigzagging on the trail.


1.The highlighted part does not look a sentence at all. It is no more than a bit (fragment) of a sentence, just a noun phrase enveloped between two periods. It is not also a modifier and since there seems to be no attached noun.

Keeping it aside these for a while, probably we can make some sense out of the phrase if we can parse it as follows.

1. The narrow waist and midsection(the doers of the three actions) can 1. Turn, 2. Allow us to swing our arms, and 3. prevent us from zigzagging.

If the above were a plausible interpretation, then the text has missed a comma after 'turn' and a comma before 'and'

There is no way we can take 'turn allow' us as a single verb.
It is also not tenable that 'prevent us' can be a full -fledged function.
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Re: Humans are better adapted for running than are other primates; a narro [#permalink]

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New post 19 Sep 2017, 01:26
AbdurRakib wrote:
Humans are better adapted for running than are other primates; a narrow waist and a midsection that can turn allow us to swing our arms and prevent us from zigzagging on the trail.

A. allow us to swing our arms and prevent
B. allows us to swing our arms and prevent
C. allows us to swing our arms and prevents.
D. is what allows us to swing our arms and prevents
E. allow us to swing our arms and to prevent


The construction is "X and Y are" or "X and Y have"

X and Y =compound subject + plural verb

A
Re: Humans are better adapted for running than are other primates; a narro   [#permalink] 19 Sep 2017, 01:26
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