Of all the vast tides of migration that have swept through : GMAT Sentence Correction (SC)
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# Of all the vast tides of migration that have swept through

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Intern
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Of all the vast tides of migration that have swept through [#permalink]

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29 Mar 2013, 03:35
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95% (01:38) correct 5% (00:33) wrong based on 55 sessions

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Of all the vast tides of migration that have swept through history, maybe none is more concentrated as the wave that brought 12 million immigrants onto
American shores in little more than three decades.

(A) maybe none is more concentrated as
(B) it may be that none is more concentrated as
(C) perhaps it is none that is more concentrated
than
(D) maybe it is none that was more concentrated
than
(E) perhaps none was more concentrated than

----------------
The answer is not disputable. However, I have different opinions about the OG's explanation. "It is ... that/who..." can be used to emphasize a part of a sentence, although I don't know how to name this use of "it". For example, "It is Tom that/who did this horrible thing."

In this question, it is clear that the writer doesn't want to emphasize "none", so the choices with "it is ... that ..." structure are wrong.

The next thing that I am confused with is the use of past tense in E. Why the simple present tense is wrong? For example,
"Of all the apples my mom has given to me, none is more delicious than the one she gave to me yesterday."
Is the use of the simple present tense correct in the above example?
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Re: Of all the vast tides of migration that have swept through [#permalink]

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29 Mar 2013, 04:10
dhler wrote:
Of all the vast tides of migration that have swept through history, maybe none is more concentrated as the wave that brought 12 million immigrants onto
American shores in little more than three decades.

(A) maybe none is more concentrated as
(B) it may be that none is more concentrated as
(C) perhaps it is none that is more concentrated
than
(D) maybe it is none that was more concentrated
than
(E) perhaps none was more concentrated than

----------------
The answer is not disputable. However, I have different opinions about the OG's explanation. "It is ... that/who..." can be used to emphasize a part of a sentence, although I don't know how to name this use of "it". For example, "It is Tom that/who did this horrible thing."

In this question, it is clear that the writer doesn't want to emphasize "none", so the choices with "it is ... that ..." structure are wrong.

The next thing that I am confused with is the use of past tense in E. Why the simple present tense is wrong? For example,
"Of all the apples my mom has given to me, none is more delicious than the one she gave to me yesterday."
Is the use of the simple present tense correct in the above example?

In my opinion, we are comparing two events that both occured in the past

First event : the vast tides of migration that have swept through history

Second event : the wave that brought 12 million immigrants onto American shores in little more than three decades.

So, we must use the simple past to render this comparaison logical.
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Re: Of all the vast tides of migration that have swept through [#permalink]

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29 Mar 2013, 04:43
Even if we are comparing two past events, the comparison itself is actually eternal, i.e. it is always true, isn't it? That's why I think the simple present should be right.

Rock750 wrote:

In my opinion, we are comparing two events that both occured in the past

First event : the vast tides of migration that have swept through history

Second event : the wave that brought 12 million immigrants onto American shores in little more than three decades.

So, we must use the simple past to render this comparaison logical.
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Re: Of all the vast tides of migration that have swept through [#permalink]

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29 Mar 2013, 07:13
dhler wrote:
Even if we are comparing two past events, the comparison itself is actually eternal, i.e. it is always true, isn't it? That's why I think the simple present should be right.

Rock750 wrote:

In my opinion, we are comparing two events that both occured in the past

First event : the vast tides of migration that have swept through history

Second event : the wave that brought 12 million immigrants onto American shores in little more than three decades.

So, we must use the simple past to render this comparaison logical.

It's not.

For instance : which of the following is correct in your opinion ?

Of the football players that marked the history, none was better known than Diego Maradonna.

Of the football players that marked the history, none is better known than Diego Maradonna.

We are clearly talking about history, so we must use past tense to emphasize that this comparaison is only valid for the football players who played before and who marked the history.
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Re: Of all the vast tides of migration that have swept through [#permalink]

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30 Mar 2013, 01:41
Rock750 wrote:
dhler wrote:
Even if we are comparing two past events, the comparison itself is actually eternal, i.e. it is always true, isn't it? That's why I think the simple present should be right.

Rock750 wrote:

In my opinion, we are comparing two events that both occured in the past

First event : the vast tides of migration that have swept through history

Second event : the wave that brought 12 million immigrants onto American shores in little more than three decades.

So, we must use the simple past to render this comparaison logical.

It's not.

For instance : which of the following is correct in your opinion ?

Of the football players that marked the history, none was better known than Diego Maradonna.

Of the football players that marked the history, none is better known than Diego Maradonna.

We are clearly talking about history, so we must use past tense to emphasize that this comparaison is only valid for the football players who played before and who marked the history.

To me the first sentence means that it is a comparison that no longer is true. However, the second means that the comparison is still true that no one is better than Diego Maradonna.

So, in the original sentence, if we use past tense, I think that the comparison is no longer true. However, the present perfect tense is used in the beginning preposition phrase. That tense should tell us that the comparison is still true.
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Re: Of all the vast tides of migration that have swept through [#permalink]

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30 Mar 2013, 05:29
Yes totally but both Maradonna and football players that marked the history no longer play today and that's why people nowadays are not likely to know them more than people who were there to watch them. Furthermore, we cannot use present tense because we don't know if this comparaison is still true as you pointed out whereas with the use of past tense, we are sure that the sentence make sense
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Re: Of all the vast tides of migration that have swept through [#permalink]

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30 Mar 2013, 08:33
Mates, both events are referring past...but have swept is present perfect, which means effect still continues in present. With regards to simple present tense in next clause, because of the use of "may be/perhaps" we cannot state a fact using simple present. So I believe best option is to use past in choice E.
This is my understanding

Hope this helps
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Re: Of all the vast tides of migration that have swept through [#permalink]

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31 Mar 2013, 01:16
Thank you very much, sdas and Rock750. I get it now.
Re: Of all the vast tides of migration that have swept through   [#permalink] 31 Mar 2013, 01:16
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