Much of the basin that had been transformed into the Great Lakes by th

Question

Much of the basin that had been transformed into the Great Lakes by the Laurentide Glacier during the last ice age was  formed by seismological events that occurred nearly one billion years earlier.

(A) Much of the basin that had been transformed into the Great Lakes by the Laurentide Glacier during the last ice age was

(B) Much of the basin that was transformed into the Great Lakes by the Laurentide Glacier during the last ice age had been

(C) Much of the basin that was transformed into the Great Lakes by the Laurentide Glacier during the last ice age has been

(D) The Laurentide Glacier during the last ice age transformed the Great Lakes from much of the basin that has been

(E) During the last ice age, much of the basin that was transformed by the Laurentide Glacier into the Great Lakes had been

DmitryFarberMPrep · Accepted Answer

E confuses the meaning. Let's shorten it to see the issue:

During the ice age, the basin had been formed a billion years earlier.

We're saying that something happened during the ice age. What happened? The basin was formed  a billion years earlier.  Then it didn't happen in the ice age! This makes no sense.

Khuranasup · Answer

The events have to be in the correct sequence in this question. For the correct sequencing we need past perfect tense since it should be clear that the seismological events took place before the complete transformation of the basin to the great lakes. so, A, C and D can be eliminated as they are simple past tense, present perfect tense and present perfect tense respectively between B and E option E starts with during the last ice age.... which makes the meaning of the sentence non-sensical as it says that during the last ice age seismological events took place a billion years ago :lol:

O.A. B give a Kudo if you like the explanation

nahid78 · Answer

Much of the basin that had been transformed into the Great Lakes by the Laurentide Glacier during the last ice age was  formed by seismological events that occurred nearly one billion years earlier.

Much of the basin that had been transformed into the Great Lakes by the Laurentide Glacier during the last ice age was
 Much of the basin that was transformed into the Great Lakes by the Laurentide Glacier during the last ice age had been
 Much of the basin that was transformed into the Great Lakes by the Laurentide Glacier during the last ice age has been
 The Laurentide Glacier during the last ice age transformed the Great Lakes from much of the basin that has been
 During the last ice age, much of the basin that was transformed by the Laurentide Glacier into the Great Lakes had been

Ditstat · Answer

IMO, B

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paidlukkha · Answer

The events have to be in the correct sequence in this question.
we need past perfect tense 
A, C and D can be eliminated as they are simple past tense, present perfect tense and present perfect tense respectively
E - comma subject rule - out
B

Abhishek009 · Answer

Seismological events (Event 1 in the past)---------> Transformation of the Basin (Event 2 in the past)

Past Perfect Tense issue, only option (B) works fine here , errors highlighted in red.

OreoShake · Answer

Hi Abhishek,

I dont understand the difference between the B and E. Please elaborate why B over E. What's wrong with 'during the last ice age'?

Thanks,
Jon

OreoShake · Answer

Got it Dmitry. Thank you.

Regards,
Jon

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ydmuley · Answer

OFFICIAL EXPLANATION:

This is a Tense/Timeline problem for which you’ll want to find the logical order of events. The sentence gives a big clue by, outside of the underline, mentioning that the seismological events took place a billion years “earlier”. So the order is that there were once seismological events, then later (but still in the past) the basin was transformed. This means that A is incorrect, as the “had been” tense puts the basin transformation earlier than the seismological events. C is also incorrect, as “has been” indicates that the transformation is still going on, but the sentence is clear that the last ice age is in the past. Choice D also uses “has been”, so it is wrong, too. Choice E also botches the timeline by leading with the modifier “during the last ice age”, suggesting that all events happened in that one timeframe. Choice B is correct, as it uses the proper timeline, putting the seismological events further back in time with “had been”.

sallysea · Answer

Merged topics. Please, search before posting questions!

Inten21 · Answer

B is actually a very clear, distinct and correct answer to this question.

All other options either twist the meaning or don't make any sense.

SonGoku · Answer

Here, past event happened earlier to another past event. So , we have to use had been .

c and D are wrongly using has been whic is wrong ----eliminate them.
now A,B,E

We know that seismological events happened before the past event so had been should be used here.
But,
A is using had been in the wrong place which is tense error. Eliminate A
Left with B and E.

During the last ice age, much of the basin that was transformed by the Laurentide Glacier into the Great Lakes had been 
E distorts the meaning by modifier which is telling that everything has happened at same time(During the ice age).
B is the left over choice so pick it....The choice is using had been correctly
So B is the Winner.

VerbalBot · Answer

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Much of the basin that had been transformed into the Great Lakes by th

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Much of the basin that had been transformed into the Great Lakes by th

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