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According to scientists who monitored its path, an expanding

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Re: According to scientists who monitored its path, an expanding [#permalink] New post 24 Dec 2013, 23:55
very tough.

as usually, the explanation is easy but the doing is hard. we need to realize which noun among many nouns in the sentence is subject of "brightening and knocking". scaning answer choices, we realize the subject in C is possibley most logic for the "brightening and knocking" .

in the test room, how do we realize this logic/meaning?

any one has any specific skill for this type of question? pls share
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Re: According to scientists who monitored its path, an expanding [#permalink] New post 11 Feb 2014, 07:41
First, the path of what is being monitored? Obviously the cloud right? So D,E are out. Next, 'was what triggered'? That sounds terrible. This one is out. Between A and C note the which in A is modiying earth. This is wrong.

Therefore C is our best choice here

Hope this clarifies
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Re: According to scientists who monitored its path, an expanding [#permalink] New post 06 Oct 2014, 12:37
ChrisLele wrote:
First off, we need to identify whether the scientists are tracking the expanding cloud or the storm. The original sentence clearly indicates that the magnetic field is in the Earth. Therefore, it is the 'expanding cloud...' so we can eliminate (D) and (E). Next we can eliminate (A) because the 'which' incorrectly modifies 'Earth.' The 'it' in (B) is ambiguous. Therefore the answer is (C).


What is the subject in this question?
choice C - Whats brightening referring to? whats the subject here?
Choice B - it is ambiguous but its paralleled with brightened and knocked even though it is passive voice.

I just can't eliminate choice b because of the style issue.

can you please explain C ?

Thank you !
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Re: According to scientists who monitored its path, an expanding [#permalink] New post 07 Jan 2015, 15:55
Eliminate D and E - expanding cloud should be a subject here, not a large storm.
In choice A wich modifies the Earth and says that the Earth brightened the Northern lights - WRONG - The Storm did it.
Eliminate B: two sentences here are connected with AND meaning that an expanding cloud 1)triggered the sotrm and 2) An expanding cloud brightened North...
We are left with choice C
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Re: According to scientists who monitored its path, an expanding [#permalink] New post 17 Jul 2015, 00:28
betterscore wrote:
According to scientists who monitored its path,
an expanding cloud of energized particles ejected from
the Sun recently triggered a large storm in the
magnetic field that surrounds Earth. which brightened
the Northern Lights and also possibly knocking
out a
communications satellite.

(A) an expanding cloud of energized particles
ejected from the Sun recently triggered a large
storm in the magnetic field that surrounds
Earth, which brightened the Northern Lights and
also possibly knocking

(B) an expanding cloud of energized particles
ejected from the Sun was what recently
triggered a large storm in the magnetic field
that surrounds Earth, and it brightened the
Northern Lights and also possibly knocked

(C) an expanding cloud of energized parti cles
ejected from the Sun recently triggered a large
storm in the magnetic field that surrounds
Earth, brightening the Northern Lights and
possibly knocking

(D) a large storm in the magnetic field that
surrounds Earth, recently triggered by an
expanding cloud of energized particles,
brightened the Northern Lights and it possibly
knocked

(E) a large storm in the magnetic field surrounding
Earth was recently triggered by an expanding
cloud of energized particles, brightening the
Northern Lights and it possibly knocked


this is very hard for non native.
read choic A. "and knocking" is wrong because there are no "doing" in the first part which parralel to "knocking". easy
read choice B, "it" refers to "clound" . this point make sentence hard. we can not say thay "it" is not logic when we have not read choice C. we can only say, here, that , "it" is not perfered because we can cut off "it". it is clear that "clound was and brighten" is better " clound was and it brighten". we can not emiminate choice B at this moment.

read choice C. we realize that "brightening " should be done by "magnatic field" not by "cloud" as in choice C. only now we see that meaning in C is better than meaning in B.
this is very hard because we can not see that meaning in B is not logic when we read B first time.

a question is hard is the one which contains a choice you can not eliminate when you read it first time. in hard question, you have to compare the meanings of two choices to eliminate a meaning/ a choice.

very tough
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Re: According to scientists who monitored its path, an expanding [#permalink] New post 29 Jul 2015, 06:09
Expert's post
When facing tough question such as this, the easier method will be to fall back on small grammar snippets to eliminate as many wrong choices as possible first; In this case, we can eliminate A and E because, we can see the mismatch of parallelism easily; second we can eliminate B because it uses ‘and also’, a redundant expression. This leaves us with C and D; At a higher level of parallelism, we should avoid the use of the subject or its pronoun in the second arm, if it happens to be same as the subject of first arm; using “it" is said to be redundant in such cases. If the pronoun’s reference is in doubt, then that choice is fit to be dropped. We can eliminate D, and end up with C as the correct choice. This may not be a panacea for situations, but at least a handy tool
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Re: According to scientists who monitored its path, an expanding   [#permalink] 29 Jul 2015, 06:09

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