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On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited

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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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New post 27 Apr 2017, 04:39
+1 for C. Option A is different from the underlined portion of Question

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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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New post 03 Jun 2017, 07:33
souvik101990 wrote:
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On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited the planet Mars and succeeded in its mission to contribute to Martian atmospheric studies, mapping Martian surface features from the lowest possible altitude, and detect heat sources from Martian volcanoes in search of evidence of recent volcanic activity.

A) to contribute to Martian atmospheric studies, and mapping Martian surface features from the lowest possible altitude, it detected

B) to contribute to Martian atmospheric studies, while mapping the Martian surface features from the lowest possible altitude, detecting

C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect

D) contributing to Martian atmospheric studies, mapping the Martian surface from the lowest possible altitude, and detecting

E) contributing to Martian atmospheric studies, it had mapped the Martian surface from the lowest possible altitude, and detected

Day 19 Question of the Verbal Contest: Race Against the GMAT Club Timer
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Hi EMPOWERgmatRichC ,
The underlined portion is not same as option A. Can you please help?
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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New post 20 Nov 2017, 01:00
daagh wrote:
Every mission has a purpose. The infinitive’s sole is purpose is to indicate such purpose; a participle is no alternative to an infinite to express the right meaning, notwithstanding the correctness of the grammar. This dumps D


Hi Daagh,
In option C, to contribute to- can we consider this a verb? I know to + infinite acts as a helping verb in its basic form.
C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect

The sentence has the structure- succeeded in its mission to contribute to Martian atmospheric studies, map Martian surface features from the lowest possible altitude, and detect...

We have map and detect as verbs. So, we need a verb in all three of them to maintain parallelism.
If we assume the structure as Contribute to (X,Y &Z )- the unmanned NASA spacecraft Mariner 9 orbited the planet Mars and succeeded in its mission to contribute to Martian atmospheric studies, map Martian surface features from the lowest possible altitude, and detect....Here Martian atmospheric studies is not parallel to the others- map & detect

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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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New post 20 Nov 2017, 01:25
Hi,
In option C, to contribute to- can we consider this a verb? I know to + infinite acts as a helping verb in its basic form.
C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect

The sentence has the structure- succeeded in its mission to contribute to Martian atmospheric studies, map Martian surface features from the lowest possible altitude, and detect...

We have map and detect as verbs. So, we need a verb in all three of them to maintain parallelism.
If we assume the structure as Contribute to (X,Y &Z )- the unmanned NASA spacecraft Mariner 9 orbited the planet Mars and succeeded in its mission to contribute to Martian atmospheric studies, map Martian surface features from the lowest possible altitude, and detect....Here Martian atmospheric studies is not parallel to the others- map & detect

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On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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New post 24 Nov 2017, 18:42
kingjamesrules wrote:
Here is my thought on this. rephrasing as "prep. phrase, Object orbited Mars and succeeded 'pre. phrase' to X, Y and Z. ".. Both C and D will fit this description.

On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited the planet Mars and succeeded in its mission to contribute to Martian atmospheric studies, mapping Martian surface features from the lowest possible altitude, and detect heat sources from Martian volcanoes in search of evidence of recent volcanic activity.

A) to contribute to Martian atmospheric studies, and mapping Martian surface features from the lowest possible altitude, it detected
- the last phrase 'it detected heat...' incorrect pronoun does not point to a specific antecedent.
B) to contribute to Martian atmospheric studies, while mapping the Martian surface features from the lowest possible altitude, detecting
- last two phrases are incorrect. while mapping..., detecting... does not fit in correctly. there should have been at least a conjunction between the two. both these phrases are not modifying the sentence correctly.
C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect
- seems correct, where the phrases fits well with the overall sentence structure.
D) contributing to Martian atmospheric studies, mapping the Martian surface from the lowest possible altitude, and detecting
- this sentence seems close enough, but my only explanation is, the action has already taken place and the previous option fits well. I am not fully sure of this.
E) contributing to Martian atmospheric studies, it had mapped the Martian surface from the lowest possible altitude, and detected
- incorrect tense usage here, especially 'had' is used incorrectly
Day 19 Question of the Verbal Contest: Race Against the GMAT Club Timer
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D is wrong because to modify an action or a verb, verb-ing modifier should follow a comma.
, contributing to.....

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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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New post 25 Nov 2017, 11:39
On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited the planet Mars and succeeded in its mission to contribute to Martian atmospheric studies, mapping Martian surface features from the lowest possible altitude, and detect heat sources from Martian volcanoes in search of evidence of recent volcanic activity.

A) to contribute to Martian atmospheric studies, and mapping Martian surface features from the lowest possible altitude, it detected

B) to contribute to Martian atmospheric studies, while mapping the Martian surface features from the lowest possible altitude, detecting

C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect

D) contributing to Martian atmospheric studies, mapping the Martian surface from the lowest possible altitude, and detecting

E) contributing to Martian atmospheric studies, it had mapped the Martian surface from the lowest possible altitude, and detected
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited   [#permalink] 25 Nov 2017, 11:39

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