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# A proposal has been made to trim the horns from rhinoceroses

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Re: A proposal has been made to trim the horns from rhinoceroses  [#permalink]

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07 Nov 2016, 12:43
Still confused over A and C. I think pronoun ambiguity is not an issue here because humans cannnot have horns. Daagh well explained the difference between present perfect and present, however we do not know that information about whether the zoo plans to cut horns in a day or over a period of time. Experts, please elaborate whether there is further reasoning to picking C over A.
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Re: A proposal has been made to trim the horns from rhinoceroses  [#permalink]

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06 Dec 2016, 01:20
daagh wrote:
The difference between ‘have been trimmed’ and ‘are trimmed’ is that trimming is a one –time job and not a daily chore. An event that was done in the past and which or whose effect is still carried through the present will have to be expressed in present perfect, while daily chores will have to be verbed with just present tense. So 'have been trimmed' is the preferred expression

the difference between present simple and present perfect is hard but basic. gmat test us this point a lot.
present simple shows habit, status and timeless fact while present perfect show an action going to present or an action finished in the part but its result is relative to present. we need to review some pages in grammar books. but dont study grammar much. it is dangerous to study too much grammar because gmat test just basic grammar not hard grammar

very cool explation above, thank you diaagh
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Re: A proposal has been made to trim the horns from rhinoceroses  [#permalink]

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06 Dec 2016, 01:21
daagh wrote:
The difference between ‘have been trimmed’ and ‘are trimmed’ is that trimming is a one –time job and not a daily chore. An event that was done in the past and which or whose effect is still carried through the present will have to be expressed in present perfect, while daily chores will have to be verbed with just present tense. So 'have been trimmed' is the preferred expression

the difference between present simple and present perfect is hard but basic. gmat test us this point a lot.
present simple shows habit, status and timeless fact while present perfect show an action going to present or an action finished in the part but its result is relative to present. we need to review some pages in grammar books. but dont study grammar much. it is dangerous to study too much grammar because gmat test just basic grammar not hard grammar

very cool explation above, thank you diaagh
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Re: A proposal has been made to trim the horns from rhinoceroses  [#permalink]

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23 Mar 2017, 16:59
A proposal has been made to trim the horns from rhinoceroses to discourage poachers; the question is whether tourists will continue to visit game parks and see rhinoceroses after their horns are trimmed.

A) whether tourists will continue to visit game parks and see rhinoceroses after their horns are -- "their" = ambiguous pronoun. Tourists or rhinos? Also, "and see" is unidiomatic (see A/C "D")
B) whether tourists will continue to visit game parks to see one once their horns are -- same as "A"
C) whether tourists will continue to visit game parks to see rhinoceroses once the animals' horns have been
D) if tourists will continue to visit game parks and see rhinoceroses once the animals' horns are -- unidiomatic. Tourists will visit parks TO SEE.
E) if tourists will continue to visit game parks to see one after the animals' horns have been -- "one" = ambiguous. same as "A"

In case its not clear, answer = C

* This question tests ambiguous pronouns and idioms

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Re: A proposal has been made to trim the horns from rhinoceroses  [#permalink]

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03 May 2017, 07:17
diehard4 wrote:
The Official Guide for GMAT Review 2016

Practice Question
Question No.: 92
Page: 691

A proposal has been made to trim the horns from rhinoceroses to discourage poachers; the question is whether tourists will continue to visit game parks and see rhinoceroses after their horns are trimmed.

(A) whether tourists will continue to visit game parks and see rhinoceroses after their horns are
(B) whether tourists will continue to visit game parks to see one once their horns are
(C) whether tourists will continue to visit game parks to see rhinoceroses once the animals’ horns have been
(D) if tourists will continue to visit game parks and see rhinoceroses once the animals’ horns are
(E) if tourists will continue to visit game parks to see one after the animals’ horns have been

First Glance

The sentence contains a semicolon but the underline is limited only to the second half. DO read the first half, as it will provide context for the intended meaning.

Issues

(1) Meaning, and

You might spot this in the original sentence or via a direct comparison of answers (A) and (B):

(A) tourists will continue to visit parks and see rhinoceroses
(B) tourists will continue to visit parks to see rhinoceroses

The X and Y structure in answer (A) does not require the two parallel portions to have anything to do with one another. Consider this example: tourists will continue to visit the pyramids in Egypt and see the Taj Mahal in India. Tourists will continue to do these two things, but the X and Y portions don't have anything to do with each other.

Similarly, in the original sentence, if the actions visit game parks and see rhinoceroses are connected by the word and, then they are completely separate. This doesn't make logical sense. The tourists visit the parks in order to see the rhinoceroses. Eliminate answers (A) and (D).

(2) Pronoun: theirs; one

Some answers use the pronoun their while others use the animals' instead. Other answers change rhinoceroses to one.

The pronoun their is ambiguous; it could refer to rhinoceroses or tourists. Consider this example: these tourists will travel to foreign countries and meet new people after their visas are approved. Whose visas need to get approved? The tourists, not the new people ─ the tourists are the ones who are traveling.

Because their could refer to tourists (it should refer to rhinoceroses), answer (A) is ambiguous. Answer (B) repeats this error; eliminate both.

Answer (B) and (E) replace rhinoceroses with the pronoun one. First it's ok to use one to refer to a plural noun; this construction just means one of those. One of what, though? Logically, one rhinoceros makes sense, but maybe the question is whether tourists will continue to see poachers after the poachers have been discouraged from killing the rhinos ─ that's also a reasonable interpretation. The word one, then, is ambiguous. Eliminate answer (B) and (E).

(3) Verb: are

A vertical scan of the end of each answer choice reveals a split between present tense are and past perfect have been. Are both acceptable?

Verb tenses convey a time frame for an action and indicate when different actions happen relative to one another. In this sentence, the trimming of the horns must happen before a possible visit by tourists, so the simple present tense is inappropriate. The present perfect have been properly indicates that, at the time of a potential tourist visit, the horns must already have been trimmed. Eliminate answers (A), (B), and (D).

Correct answer (C) fixes the initial pronoun error by replacing their with the animals'. Furthermore, the sentence changes the X and Y construction to one with a more logical meaning: the tourists visit parks to see rhinoceroses.

Miscellaneous

Nowadays, whether and if are mostly used interchangeably. Formally, though, whether is used to indicate the meaning whether or not: Tell me whether you plan to go to the movies ─ I want to know whether you do or whether you don't. On the other hand, if is used for if-then (conditional) clauses: If you buy me an ice cream, I'll be happy.

To date, no published official questions have used if in a correct answer choice when the meaning technically matches the word whether. The official answer explanations, however, don't actually mention this issue. If you need to guess, don't pick an answer that uses if when the meaning is really whether or not.
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Re: A proposal has been made to trim the horns from rhinoceroses  [#permalink]

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29 Jun 2017, 04:50
A proposal has been made to trim the horns from rhinoceroses to discourage poachers; the question is whether tourists will continue to visit game parks and see rhinoceroses after their horns are trimmed.

(A) whether tourists will continue to visit game parks and see rhinoceroses after their horns are
(B) whether tourists will continue to visit game parks to see one once their horns are
(C) whether tourists will continue to visit game parks to see rhinoceroses once the animals’ horns have been
(D) if tourists will continue to visit game parks and see rhinoceroses once the animals’ horns are
(E) if tourists will continue to visit game parks to see one after the animals’ horns have been

"whether" must be used instead of "if" because "If" is used in conditionals which is not the case above and "whether" used when there is an option b/w two choices - D & E out
"visit game parks to see rhinoceroses" is clearly preferred over "visit game parks and see rhinoceroses" because we are talking about purpose of visiting the parks to see rhinos, - A out
Finally "one" does not agree with "their" subject-verb disagreement - B out
In option C present perfect "have been trimmed" is correctly used because we are talking about rhinos horns that were trimmed but its affect is observed in the present

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Re: A proposal has been made to trim the horns from rhinoceroses  [#permalink]

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29 Jun 2017, 09:13
Imo C whether tourists will continue to visit game parks to see rhinoceroses once the animals’ horns have been
We have to use whether for probability .
If is use for conditions .
Them is ambiguous in other options.
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Re: A proposal has been made to trim the horns from rhinoceroses  [#permalink]

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13 Sep 2017, 13:37
A proposal has been made to trim the horns from rhinoceroses to discourage poachers; the question is whether tourists will continue to visit game parks and see rhinoceroses after their horns are trimmed.

(A) whether tourists will continue to visit game parks and see rhinoceroses after their horns are
(B) whether tourists will continue to visit game parks to see one once their horns are
(C) whether tourists will continue to visit game parks to see rhinoceroses once the animals’ horns have been
(D) if tourists will continue to visit game parks and see rhinoceroses once the animals’ horns are
(E) if tourists will continue to visit game parks to see one after the animals’ horns have been
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Re: A proposal has been made to trim the horns from rhinoceroses  [#permalink]

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13 Dec 2017, 08:54
As we are not stating any condition ‘if’ is not needed. This sentence talks about the future event ‘tourists will continue to visit’ is going to happen and before that the action of horns have already been trimmed (present perfect) needs to happen. So ‘C’ is the best choice.
Re: A proposal has been made to trim the horns from rhinoceroses &nbs [#permalink] 13 Dec 2017, 08:54

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