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daagh
The use of gravity waves, which do not interact with matter in the way electromagnetic waves do, hopefully will enable astronomers to study the actual formation of black holes and neutron stars.

A. in the way electromagnetic waves do, hopefully will enable
B. in the way electromagnetic waves do, will, it is hoped, enable
C. like electromagnetic waves, hopefully will enable
D. like electromagnetic waves, would enable, hopefully
E. such as electromagnetic waves do, will, it is hoped, enable

The first entry point is the use of the adverb ''hopefully' which goes against the vibe and the ethos of GMAT. For whatever reason, GMAT has not approved that word. So we can boldly remove A, C, and D.
Between B and E, the meaning is completely warped in E; B is the answer

Hi Sir daagh ,
How many such words( GMAT doesn't like) are there, any way to find out those? These special rules are creating lots of problem, any pointers to get over these obstacles.
In one of the questions of GMAT club grammar, incidentally is used, this use is legit? In one of option "as it is a fact" is used in place of incidentally.
https://gmatclub.com/forum/mohammed-ali ... l#p1160438

I strongly disapprove of this approach. Please do not do this! See above for my take on this question. (TL;DR: It's a bad question, at least given the modern usage of "hopefully," and it would never, ever be asked in 2020.) But in no event should anyone try to memorize a list of words that "the GMAT doesn't like."

Why do you think a question like this would never, ever be asked by the GMAT now? Do you know which year this question is from?

Not asking to be confrontational, I genuinely want to know because I also hope that this would not be asked!
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what I hear that ''hopefully'' is always wrong.

is there a better way to understand?

moreover in B] ''it is hoped'' a clause is put b/w commas. how clauses are alllowed to be used as NEM?
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what I hear that ''hopefully'' is always wrong.

no, it's not always wrong. (If a single word is "always wrong", then it must not be an English word at all! "Hopefully" is definitely a word, so, it will have legitimate usages.)

The formal usage of hopefully, in fact, corresponds exactly to its grammatical form: it's the adverb derived from "hopeful", an adjective for a person's attitude.
e.g., The stranded sailors looked hopefully out to sea for a ship that could come rescue them.

The meaning here is not the same as that of "it is hoped". Please note, however, that this is a very old problem that's been brought back from the dead (the citation here includes "OG 1988"!!), and that present-day GMAT problems will not give you choices that are wrong ONLY because of one extremely subtle/obscure issue.


Quote:
moreover in B] ''it is hoped'' a clause is put b/w commas. how clauses are alllowed to be used as NEM?

I'm sorry, but I don't know what "b/w" or "NEM" means. Please write your questions without using abbreviations—thank you.
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what I meant was- in B] we have ''it is hoped'' which is a clause put between commas. are clauses alllowed to be used as non essential modifier?


RonTargetTestPrep
Anshul1223333
what I hear that ''hopefully'' is always wrong.

no, it's not always wrong. (If a single word is "always wrong", then it must not be an English word at all! "Hopefully" is definitely a word, so, it will have legitimate usages.)

The formal usage of hopefully, in fact, corresponds exactly to its grammatical form: it's the adverb derived from "hopeful", an adjective for a person's attitude.
e.g., The stranded sailors looked hopefully out to sea for a ship that could come rescue them.

The meaning here is not the same as that of "it is hoped". Please note, however, that this is a very old problem that's been brought back from the dead (the citation here includes "OG 1988"!!), and that present-day GMAT problems will not give you choices that are wrong ONLY because of one extremely subtle/obscure issue.


Quote:
moreover in B] ''it is hoped'' a clause is put b/w commas. how clauses are alllowed to be used as NEM?

I'm sorry, but I don't know what "b/w" or "NEM" means. Please write your questions without using abbreviations—thank you.
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Anshul1223333


what I meant was- in B] we have ''it is hoped'' which is a clause put between commas. are clauses allowed to be used as non essential modifier?

—> "Is GMAC's correct answer actually correct?" Yes.
This is not a productive line of questioning. Everything in GMAC's correct sentences is written correctly. Nothing in GMAC's correct answers is wrong.


"It is hoped" is an attribution. It plays the same role as "Ms. Smith said", "many people believe", etc. Are you okay with those kinds of things?
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BTW... For completeness, regarding this declaration:

RonTargetTestPrep
"Is GMAC's correct answer actually correct?" Yes.
This is not a productive line of questioning. Everything in GMAC's correct sentences is written correctly. Nothing in GMAC's correct answers is wrong.

The above is an absolute truth—seriously, ladies and gentlemen, DO NOT waste your time asking whether GMAC's correct sentences are right or wrong. You already know the answer to that.

There CAN be value in asking WHY the official answer is correct, or HOW it works, or what understanding you DON'T currently have.
These types of inquiries can all lead to actual learning.
All of them are COMPLETELY different from "But is GMAC's answer really really reeeeeallllllyyy right?"—a question that is NOT structured to catalyze new learning, and that I've seen some people even ask with this weirdly arrogant attitude (almost like, "Well, ••I•• know better... Who do these GMAC guys think they are?") that actively inhibits learning and improvement.
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Hi experts,
can you kindly explain why "it is hoped" not an independent clause?
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EMPOWERgmatVerbal
Hello Everyone!

Let's tackle this question, one thing at a time, and narrow down our options quickly so we know how to answer questions like this when they pop up on the GMAT! To begin, let's take a quick look at the question and highlight any major differences between the options in orange:

The use of gravity waves, which do not interact with matter in the way electromagnetic waves do, hopefully will enable astronomers to study the actual formation of black holes and neutron stars.

A. in the way electromagnetic waves do, hopefully will enable
B. in the way electromagnetic waves do, will, it is hoped, enable
C. like electromagnetic waves, hopefully will enable
D. like electromagnetic waves, would enable, hopefully
E. such as electromagnetic waves do, will, it is hoped, enable

After a quick glance over the options, we have 2 main areas we can focus our attention on to narrow down our choices:

1. in the way / like / such as
2. hopefully will enable / will, it is hoped, enable / would enable, hopefully


Let's start with #1 on our list: in the way / like / such as. Each of these are used for different things, so we need to make sure they are used correctly in terms of both idiom structure and parallelism. To make this easier to spot, I've added in the first part of the phrase:

A. which do not interact with matter in the way electromagnetic waves do, hopefully will enable = CORRECT
(compares how matter interacts with how electromagnetic waves interact, which is parallel)

B. which do not interact with matter in the way electromagnetic waves do, will, it is hoped, enable = CORRECT
(compares how matter interacts with how electromagnetic waves interact, which is parallel)

C. which do not interact with matter like electromagnetic waves, hopefully will enable = WRONG
(compares how matter interacts to electromagnetic waves, which is not parallel - you must compare actions to actions, not actions to things)

D. which do not interact with matter like electromagnetic waves, would enable, hopefully = WRONG
(compares how matter interacts to electromagnetic waves, which is not parallel - you must compare actions to actions, not actions to things)

E. which do not interact with matter such as electromagnetic waves do, will, it is hoped, enable = WRONG
("such as" is ONLY used to provide examples of something; electromagnetic waves are not an example of matter, so this doesn't work)

We can eliminate options C, D, & E because they either use the wrong idiom or use non-parallel comparisons.

Now that we have it narrowed down to only 2 options, let's explore them more closely to find their differences and consider which one is the better choice. To make problems easier to spot, let's add in the non-underlined parts:

A. The use of gravity waves, which do not interact with matter in the way electromagnetic waves do, hopefully will enable astronomers to study the actual formation of black holes and neutron stars.

This is INCORRECT because the use of "hopefully" is problematic. It's an adverb that isn't being used as an adverb, which is wrong. It actually suggests that the astronomers enabling is hopeful, not that someone else hopes that the astronomers will be enabled to study black holes and neuron stars.

B. The use of gravity waves, which do not interact with matter in the way electromagnetic waves do, will, it is hoped, enable astronomers to study the actual formation of black holes and neutron stars.

This is CORRECT! It fixes the "hopefully" problem in option D, and uses a parallel comparison.


There you have it - option B is the correct choice!


Don't study for the GMAT. Train for it.
Not sure if I'm thinking it straight.
But in A there is no subject to 'hopefully'. Like who is hoping that the use of gravity waves will enable astronomers to study.
We've an adverb but no subject linked to the verb, the adverb 'hopefully' is modifying.
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Vasu49
Not sure if I'm thinking it straight.
But in A there is no subject to 'hopefully'. Like who is hoping that the use of gravity waves will enable astronomers to study.
We've an adverb but no subject linked to the verb, the adverb 'hopefully' is modifying.
Hi Vasu49,

Hopefully is a way to say ~"I/we hope that" or "it is hoped that", so there's no need to look for another noun.
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Dear Friends,

Here is a detailed explanation to this question-
Curly05
The use of gravity waves, which do not interact with matter in the way electromagnetic waves do, hopefully will enable astronomers to study the actual formation of black holes and neutron stars.


(A) in the way electromagnetic waves do, hopefully will enable

(B) in the way electromagnetic waves do, will, it is hoped, enable

(C) like electromagnetic waves, hopefully will enable

(D) like electromagnetic waves, would enable, hopefully

(E) such as electromagnetic waves do, will, it is hoped, enable


Meaning is crucial to solving this problem:
Understanding the intended meaning is key to solving this question; the intended meaning of this crucial part of this sentence is that it is hoped that the use of gravity waves will enable astronomers to study the actual formation of black holes and neutron stars.

Concepts tested here: Meaning + Comparison + Idioms + Awkwardness/Redundancy

• A comparison must always be made between similar things.
• “like” is used for comparing nouns, “as” is used for comparing actions/clauses, and “such as” is used for giving examples.
• "hopefully" means "full of hope" and not "it is hoped"; for this subtlety, please be very careful when you see "hopefully" in an answer choice; it is generally incorrect.

A: This answer choice alters the meaning of the sentence through the phrase "hopefully will enable"; the use of the adverb "hopefully" to modify "will enable" illogically implies that the use of gravity waves will carry out the action of enabling astronomers in a hopeful manner; the intended meaning is that it is hoped that the use of gravity waves will enable astronomers; remember, "hopefully" means "full of hope" and not "it is hoped". Besides, the placement of “hopefully” is such that it doesn’t directly modify the verb “enable”; “will hopefully enable” would have made Choice A more competitive. On a side note, the term “hopefully” is generally incorrect on GMAT as it often suffers from such imperfect adverbial usage issues.

B: Correct. This answer choice uses the clause "it is hoped" to modify the verb "enabled", conveying the intended meaning - that it is hoped that the use of gravity waves will enable astronomers. Further, Option E correctly compares the clauses "interact with matter" and "electromagnetic waves do". Additionally, Option B avoids the idiomatic error seen in Option B, as it uses the phrase "in the way" rather than "like" to draw a comparison. Besides, Option B is free of any awkwardness or redundancy.

C: This answer choice alters the meaning of the sentence through the phrase "hopefully will enable"; the use of the adverb "hopefully" to modify "will enable" illogically implies that the use of gravity waves will carry out the action of enabling astronomers in a hopeful manner; the intended meaning is that it is hoped that the use of gravity waves will enable astronomers; remember, "hopefully" means "full of hope" and not "it is hoped". Further, Option C incorrectly compares the clause "interact with matter" to the noun phrase "electromagnetic waves"; remember, a comparison must always be made between similar things. Besides, the placement of “hopefully” is such that it doesn’t directly modify the verb “enable”; “will hopefully enable” would have made Choice C more competitive. On a side note, the term “hopefully” is generally incorrect on GMAT as it often suffers from such imperfect adverbial usage issues.

D: This answer choice alters the meaning of the sentence through the phrase "would enable, hopefully"; the use of the adverb "hopefully" to modify "will enable" illogically implies that the use of gravity waves will carry out the action of enabling astronomers in a hopeful manner; the intended meaning is that it is hoped that the use of gravity waves will enable astronomers; remember, "hopefully" means "full of hope" and not "it is hoped". Further, Option D incorrectly compares the clause "interact with matter" to the noun phrase "electromagnetic waves"; remember, a comparison must always be made between similar things. Additionally, Option D redundantly uses the verb "would" alongside the adverb "hopefully"; remember, “will” is preferred for referring to events that are certain to happen, and “would” is preferred for referring to events that are hypothetical, meaning the use of “would” alongside words that express uncertainty is redundant.

E: This answer choice incorrectly uses the phrase “such as” rather than “as” to compare the clauses “interact with matter” and “electromagnetic waves do”; remember, “like” is used for comparing nouns, “as” is used for comparing actions/clauses, and “such as” is used for giving examples.

Hence, B is the best answer choice.

To understand the concept of "Like" vs "As", you may want to watch the following video (~2 minutes):



All the best!
Experts' Global Team

For B, OG explanation states that:
"While the use of hopefully, as used in the sentence as written, to mean I hope that or let’s hope that, is well established, this use is considered to be informal. For this reason, it is generally avoided in writing.

When it is used in this way in writing, however, it must be used at the beginning of a sentence or at the beginning of an independent clause, and be set off by the use of commas. In any case, the use of hopefully in this sentence is incorrect: in a technical sense, it implies that the enabling of the astronomers will be hopeful."
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Hey joseset1234

What's important to understand here is that we need a Sentence Adverb and not a Verb Adverb. It is the entire idea expressed by the sentence that is hoped, and not the "enabling" that was done hopefully or with hope.


What the official explanation confirms is that we need a sentence adverb. The author hopes or (generally) it is hoped that the use of gravity waves will enable astronomers to study black holes and neutron stars. The author does not wish to say that gravity waves have hope. Using "hopefully will enable" implies that gravity waves hope and that they will enable, with hope, astronomers. This is absurd, and hence incorrect.


Now, the official explanation also confirms that sentence adverbs are usually placed at the start of the clause separated by a comma. This is standard usage as of today. And the GMAT endorses expressions that have become standard. So, what the official explanation hints at is, had the sentence been written as follows:

    Hopefully, the use of gravity waves, which do not interact with matter in the way electromagnetic waves do, will enable astronomers to study the actual formation of black holes and neutron stars.

...then the GMAT might have considered it correct. But not in its current form, as in choice A.


I hope this helps improve your understanding and highlights the difference between a verb adverb and a sentence/clause adverb.


Happy Learning!

Abhishek :)
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I think a meaning-based approach is right for this particular question.

Options C, D, and E are pretty easy to eliminate. The main split is between A and B.
Option A - The use of gravity waves, which do not interact with matter in the way electromagnetic waves do, hopefully will enable astronomers to study the actual formation of black holes and neutron stars.
what this implies is that "there is a hopeful way to use gravity waves". The word hopefully is misplaced. these errors are easy to see if we remove the extra phrase in between - The use of gravity waves hopefully....

Hence answer is option B
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Well, I came across this question few months back while solving GMAT Official Advanced Questions !
The official explanation for this Rhetorical construction is as follows:
While the use of hopefully, as used in the sentence as written, to mean I hope that or let's hope that, is well established,
this use is considered to be informal. For this reason, it is generally avoided in writing.
When it is used in this way in writing, however, it must be used at the beginning of a sentence or at the beginning of an independent clause, and be set off by the use of commas. In any case the use of hopefully is this sentence is incorrect:
In a technical sense, it implies that the enabling of the astronomers will be hopeful.
I am happy if this gonna help someone.
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@GMATNinja can you pls offer your explanation for the same here? This is an OA from the advanced book.
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Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
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