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# A piece of limestone discovered in sedimentary deposits near Gubbio

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A piece of limestone discovered in sedimentary deposits near Gubbio  [#permalink]

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Updated on: 14 Apr 2019, 00:16
1
00:00

Difficulty:

25% (medium)

Question Stats:

63% (01:23) correct 37% (01:24) wrong based on 73 sessions

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A piece of limestone discovered in sedimentary deposits near Gubbio, Italy, in 1979 provided the first evidence that the extinction of dinosaurs has possibly been caused by a meteorite impacting.

A. that the extinction of dinosaurs has possibly been caused by a meteorite impacting

B. that the extinction of dinosaurs may have been caused by a meteorite impact

C. of the extinction of dinosaurs being caused by the impact of a meteorite

D. of how possible it is that the extinction of dinosaurs could have been caused by a meteorite impact

E. that the cause of the extinction of the dinosaurs is probably a meteorite impact

Originally posted by baggio on 01 Mar 2009, 15:48.
Last edited by Bunuel on 14 Apr 2019, 00:16, edited 1 time in total.
Edited the question.
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Re: A piece of limestone discovered in sedimentary deposits near Gubbio  [#permalink]

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07 Jun 2012, 15:19
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abhi398 had the right idea, but he expressed it in unconventional language so later commenters seemed to have misunderstood his point. I'll clarify.

The original question was, "How could ...extinction may have been caused... be correct, since extinction is singular and have is plural?"

The answer is that the so-called modal verbs used to express past possibility and probability sometimes take different forms than do other verbs. For instance, these are all correct,
He could have answered my text.
He must have decided to ignore it.
He might have fallen down a well.
We always say could/must/might have and we never say could/must/might has, whatever the subject.

Similarly, these sentences are correct, even though they are about counterfactuals rather than about probability or possibility,
He would have answered if he could.
He should have been more careful.

I have heard such sentence moods characterized as subjunctives, perhaps by analogy with a more robust set of subjunctives in other languages, but most people use the word subjunctive in English to mean either hypothetical subjunctive or command subjunctive. I'm not going to go into those here, except to say that you can learn about them in the MGMAT SC guide, that they're not a big deal on the GMAT, and that daagh obviously took abhi398 to mean the command subjunctive.
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Re: A piece of limestone discovered in sedimentary deposits near Gubbio  [#permalink]

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03 Mar 2009, 10:18
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1
What exactly is wrong with E?

Meteorite impact is incorrect?

Yes it is incorrect.

meteorite = noun
impact = noun

Meteriotic impact is correct.
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Re: A piece of limestone discovered in sedimentary deposits near Gubbio  [#permalink]

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20 May 2012, 00:27
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Option A : The last word impacting makes the sentence not sound proper...

Looking for split we have 3-2 spilt : that and of ..

as the sentence is stating idea we have to use the that instead of of.. hence c and D is incorrect.

B : Subjunctive mood hence we have used have ....
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Re: A piece of limestone discovered in sedimentary deposits near Gubbio  [#permalink]

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03 Mar 2009, 09:56
What exactly is wrong with E?

Meteorite impact is incorrect?
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Re: A piece of limestone discovered in sedimentary deposits near Gubbio  [#permalink]

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21 May 2012, 07:34
Sorry, there is no subjunctive mood here. For subjunctive mood to be there, the sentence requires a compulsion, there is no compulsion involved here. This is mere statement. For converting this statement into a subjunctive mood, we may hve to say, though absurdly—

A piece of limestone discovered in sedimentary deposits near Gubbio, Italy, in 1979 demanded/ stipulated/ claimed the first evidence that the extinction of dinosaurs be caused by a meteorite impacting

Coming to other aspects, by meteorite impacting (impacting is gerund here) means a meteorite’s impaction or impact. It is not correct to use an ing gerund where a more befitting straight noun form is available. C is wrong because of the use of being caused as if the impact is happening now. D is a convoluted sentence. E has no completed verb.

Therefore, B survives.
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Re: A piece of limestone discovered in sedimentary deposits near Gubbio  [#permalink]

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12 Apr 2019, 05:07
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).

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Re: A piece of limestone discovered in sedimentary deposits near Gubbio   [#permalink] 12 Apr 2019, 05:07
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