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# Dark matter along with black holes, a region of space from which nothi

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Manager
Joined: 26 Sep 2018
Posts: 60
Location: Sweden
Dark matter along with black holes, a region of space from which nothi  [#permalink]

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03 Jan 2019, 08:45
00:00

Difficulty:

5% (low)

Question Stats:

93% (00:37) correct 7% (01:00) wrong based on 46 sessions

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Dark matter along with black holes, a region of space from which nothing can escape, estimated to contain three fourths of mass of the universe.

a) estimated to

b) is estimated to

c) estimated by some to

d) some astronomers estimate they

e) as estimated by astronomers to
Intern
Joined: 13 Feb 2016
Posts: 21
Location: India
Concentration: Finance, Strategy
GMAT 1: 720 Q49 V39
WE: Corporate Finance (Energy and Utilities)
Re: Dark matter along with black holes, a region of space from which nothi  [#permalink]

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04 Jan 2019, 00:05
Dark matter along with black holes, a region of space from which nothing can escape, estimated to contain three fourths of mass of the universe.

After slashing the modifier, the sentence becomes:Dark matter along with black holes estimated to contain three fourths of mass of the universe.

The usage of Active Voice is incorrect here. Passive Voice must be used here as the doer [who estimate] is not emphasised in the sentence.
Only option B employs the usage of Passive Voice.
Senior Manager
Joined: 12 Dec 2015
Posts: 402
Re: Dark matter along with black holes, a region of space from which nothi  [#permalink]

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15 Mar 2019, 05:51
Dark matter along with black holes, a region of space from which nothing can escape, estimated to contain three fourths of mass of the universe.

a) estimated to --> no main verb

b) is estimated to --> correct

c) estimated by some to --> same as A

d) some astronomers estimate they --> same as A

e) as estimated by astronomers to --> same as A
Re: Dark matter along with black holes, a region of space from which nothi   [#permalink] 15 Mar 2019, 05:51
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