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# Pulsars are generally believed to be fast-spinning neutron

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Pulsars are generally believed to be fast-spinning neutron [#permalink]

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25 May 2010, 23:01
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Pulsars are generally believed to be fast-spinning neutron stars to be located by the pulsating radio waves it emits.

A) to be located by the pulsating radio waves it emits
B) to be located by the pulsating radio waves they emit
C) locatable by the pulsating radio waves which it emits
D) emitting pulsating radio waves by which it can be located
E) that can be located by the pulsating radio waves they emit
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Re: Pulsars - fast-spinning neutron stars [#permalink]

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02 Jun 2010, 19:12
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seekmba wrote:
Both B and E are contenders

what is the grammatical reason to select (E) over (B)? Can someone please explain this?

Pulsars are generally believed to be fast-spinning neutron stars to be located by the pulsating radio waves it emits.

Choice B wrongly implies that neutron stars will be located by pulsating radio waves sometime in the future. The point in the sentence is they can generally be located. That is why, option E is better over B.
Hope it helps,
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Re: Pulsars - fast-spinning neutron stars [#permalink]

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25 May 2010, 23:09
IMO E

"believes ......" should be followed by "that"
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Re: Pulsars - fast-spinning neutron stars [#permalink]

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25 May 2010, 23:19
Not necessary.

Believe to be is also a correct idiom.
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Re: Pulsars - fast-spinning neutron stars [#permalink]

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25 May 2010, 23:30
Still E

"believed to be fast-spinning neutron stars" --> needs to be followed by "that" because we are talking about "stars" in the next fragment.
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Re: Pulsars - fast-spinning neutron stars [#permalink]

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02 Jun 2010, 08:48
Both B and E are contenders

what is the grammatical reason to select (E) over (B)? Can someone please explain this?
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Re: Pulsars are generally believed to be fast-spinning neutron [#permalink]

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07 Jul 2016, 01:35
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Re: Pulsars are generally believed to be fast-spinning neutron [#permalink]

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07 Jul 2016, 01:51
Can someone post OA. I went for E.
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Re: Pulsars are generally believed to be fast-spinning neutron [#permalink]

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07 Jul 2016, 06:41
ykaiim wrote:
Pulsars are generally believed to be fast-spinning neutron stars to be located by the pulsating radio waves it emits.

A) to be located by the pulsating radio waves it emits
B) to be located by the pulsating radio waves they emit
C) locatable by the pulsating radio waves which it emits
D) emitting pulsating radio waves by which it can be located
E) that can be located by the pulsating radio waves they emit

'to be' in option A and B is wrong. Correct idiom ' Believed to be' i already mentioned in non-underlined portion.

'it' in choice C and D is wrong as it wrongly refers to plural noun 'pulsars'

E is the correct choice
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Re: Pulsars are generally believed to be fast-spinning neutron   [#permalink] 07 Jul 2016, 06:41
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