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# If NASA's Cassini mission successfully completes ...

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Director
Status: 1,750 Q's attempted and counting
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Joined: 09 Jul 2013
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Location: United States (FL)
Schools: UFL (A)
GMAT 1: 600 Q45 V29
GMAT 2: 590 Q35 V35
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GMAT 4: 610 Q44 V30
GPA: 3.45
WE: Accounting (Accounting)
If NASA's Cassini mission successfully completes ... [#permalink]

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22 Oct 2013, 13:31
2
00:00

Difficulty:

5% (low)

Question Stats:

78% (00:45) correct 22% (01:02) wrong based on 194 sessions

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If NASA's Cassini mission successfully completes its next phase – orbiting Saturn many times over a several-year period – its stunning photos of and data concerning Saturn have been and will continue to enthrall astronomers throughout the world.

A. have been and will continue to enthrall
B. have and will continue to enthrall
C. will continue to enthrall, as they already did,
D. will continue to enthrall, as they have already,
E. will continue to enthrall

OE to follow.
Magoosh GMAT Instructor
Joined: 28 Dec 2011
Posts: 4668
Re: If NASA's Cassini mission successfully completes ... [#permalink]

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22 Oct 2013, 13:43
1
1
avohden wrote:
If NASA's Cassini mission successfully completes its next phase – orbiting Saturn many times over a several-year period – its stunning photos of and data concerning Saturn have been and will continue to enthrall astronomers throughout the world.

A. have been and will continue to enthrall
B. have and will continue to enthrall
C. will continue to enthrall, as they already did,
D. will continue to enthrall, as they have already,
E. will continue to enthrall

OE to follow.

Dear avohden,
I'm happy to help.

This is a very subtle question about redundancy. See:
http://gmat.magoosh.com/lessons/920-avoid-redundancy

Think about the phrase "will continue to enthrall" --- according to just this phrase, when does the "enthralling" happen? If something is continuing, it already must be happening --- it must have started in the past, and have been in continuous operation from that start through the present. By saying, it "will continue", we are saying this continuous activity, from the start in the past to the present without break, will also proceed without break into the future. All of this is contained in the idea of "will continue". The phrase "will continue to enthrall" directly implies that the mission already "had been enthralling" these people. Thus, adding explicitly the idea of past action, the fact that the mission "had been enthralling", is redundant, because it's already implied in the "will continue" verb.

The only answer that totally eliminates the redundancy is (E).

Does all this make sense?
Mike
_________________

Mike McGarry
Magoosh Test Prep

Education is not the filling of a pail, but the lighting of a fire. — William Butler Yeats (1865 – 1939)

Director
Status: 1,750 Q's attempted and counting
Affiliations: University of Florida
Joined: 09 Jul 2013
Posts: 509
Location: United States (FL)
Schools: UFL (A)
GMAT 1: 600 Q45 V29
GMAT 2: 590 Q35 V35
GMAT 3: 570 Q42 V28
GMAT 4: 610 Q44 V30
GPA: 3.45
WE: Accounting (Accounting)
Re: If NASA's Cassini mission successfully completes ... [#permalink]

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26 Oct 2013, 04:02
1
Official Explanation

Note that this sentence is effectively an "if/then" statement with the "then" implied. In an "if/then" statement, if the "if" part is in the simple future tense, then the "then" part must also be in the simple future tense. That is the case here. So look for an answer choice that uses the future tense. The only answer choice that satisfies this requirement is (E).

Also note that, in (A) and (B), the auxiliary verbs "have been" and "have" cannot properly be completed by "enthrall" which appears later; "have been" would require "enthralling", while "have" would require "enthralled". Choices (C) and (D) are wordy because they add unnecessary and awkward phrases.

Hope it helps.
Senior Manager
Joined: 08 Jan 2018
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WE: Accounting (Accounting)
Re: If NASA's Cassini mission successfully completes ... [#permalink]

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24 Jan 2018, 10:36
I subscribe daily Kaplan question, and this question belongs to Kaplan.
I thought E change the meaning but it turns out that C and D are wordy.
Re: If NASA's Cassini mission successfully completes ...   [#permalink] 24 Jan 2018, 10:36
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