Astronomers at the Palomar Observatory have discovered a

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Astronomers at the Palomar Observatory have discovered a [#permalink]

28 Apr 2012, 21:59

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9. Astronomers at the Palomar Observatory have discovered a distant supernova explosion, one that they believe is a type previously unknown to science.
(A) that they believe is
(B) that they believe it to be
(C) they believe that it is of
(D) they believe that is
(E) they believe to be of

[Reveal] Spoiler: OA

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Re: 9. Astronomers at the Palomar Observatory have discovered a [#permalink]

28 Apr 2012, 22:33

believe to be is the right idiom. I guess B is wordy and has unclear pronoun it. So E. Can we say "that they believe to be of"?

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Re: 9. Astronomers at the Palomar Observatory have discovered a [#permalink]

28 Apr 2012, 23:56

9. Astronomers at the Palomar Observatory have discovered a distant supernova explosion, one that they believe is a type previously unknown to science.
(A) that they believe is : is creating a run on sentence
(B) that they believe it to be : "it" redundant, no need to have since the phrase is talking about the "one = explosion"
(C) they believe that it is of : wordy
(D) they believe that is : wordy
(E) they believe to be of : concise, correct

I assumed the following construction (which called 'absolute phrase') for the second sentence.

one ( xxxx, describing explosion ) of a type previously unknown to science.
( xxxx = they believe to be ) -> 'that' sometimes to be omitted ex) I ran to the office (that) I like.

please correct my reasoning if wrong.
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Re: 9. Astronomers at the Palomar Observatory have discovered a [#permalink]

29 Apr 2012, 03:13

Yes I believe "of" goes with certain type previously unknown to science

Believe to be is an idiom

Re: 9. Astronomers at the Palomar Observatory have discovered a [#permalink] 29 Apr 2012, 03:13

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Astronomers at the Palomar Observatory have discovered a

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