Scientists theorize that tuberculosis may be responsible for the extin

Question

Scientists theorize that tuberculosis may be responsible for the extinction of the mastodon , a species of mammal  that lived at the same time as other legendary mammals  such as the woolly mammoth and saber toothed tiger

A. that lived at the same time as other legendary mammals

B. that had lived at the same time as had other legendary mammals

C. that lived at the same time those others had

D. living at the same time as those others did

E. living at the same time as those were

Kurtosis · Answer

a. that lived at the same time as other legendary mammals - Correct.

B. that had lived at the same time as had other legendary mammals - Incorrect. Unnecessary usage of past perfect.

c. that lived at the same time those others had - Incorrect. Awkward

d. living at the same time as those others did - Incorrect. Awkward.

e. living at the same time as those were - Incorrect. Awkward.

Answer: A

nitiny · Answer

a. that lived at the same time as other legendary mammals
B. that had lived at the same time as had other legendary mammals 
c. that lived at the same time those others had 
d. living at the same time as those others did 
e. living at the same time as those were

IMO A 
usage of "had" not required

RK84 · Answer

Why A is correct? Doesn't it compare time with legendary mammals? In which cases we use/assume ellipsis? I thought B stood a better chance here.

askul2389 · Answer

Past perfect tense (had) is used 
1. For sequencing two or more events that are in the past
Mary had been playing when John came home. 
Here Mary was playing before John came home.

2 . to show Possession : I had a wonderful car but now my neighbor owns it.

Hence use of past perfect is not correct in statement B since sequencing is not required

Sent from my MI 3W using  GMAT Club Forum mobile app

JanGMAC · Answer

a. that lived at the same time as other legendary mammals -> not the time is compared to mammals, but the mammals  lived   at the same time as the legendary ones (lived)
B. that had lived at the same time as had other legendary mammals -> Why would you want to add past perfect here. According to your reasoning, the same mistake would still be present, btw.

Hope, that my explanation was clear.

sayantanc2k · Answer

In a parallel structure (including comparison) it is alright to omit repeated parts (including verbs) from the second element of the structure. Option A before omission would be:

.. that lived   at the same time as  other legendary mammals  such as the woolly mammoth and saber toothed tiger  (lived).

The verb "lived" has been omitted from the second element.

keegoz · Answer

I am not sure why A is accurate? We are comparing a time point with some legendary mammals. B is a bit wordy and we don't need the had but isn't B is the next best thing?

DexterZabula · Answer

Past perfect is used to represent action that took place before another event that took place in past.
Living must have preceded the extinction, so we are supposed to use past perfect, isn't it?

CrackverbalGMAT · Answer

Scientists theorize that tuberculosis may be responsible for the extinction of the mastodon , a species of mammal  that lived at the same time as other legendary mammals  such as the woolly mammoth and saber toothed tiger

A. that lived at the same time as other legendary mammals  Correct answer. There are no errors here.

B. that had lived at the same time as had other legendary mammals  There is no need to use past perfect "had lived" as we are not talking about two events occuring in the past. Eliminate.

C. that lived at the same time those others had  "those others had" is erroneous - there is no need to use "had" and "those" does not have any antecedent. Eliminate.

D. living at the same time as those others did  Usage of present tense in "living" is incorrect. Eliminate.

E. living at the same time as those were  Same as (D). Eliminate.

Hope this helps.

ravigupta2912 · Answer

A. that lived at the same time as other legendary mammals -- Correct. Tenses are in order.

B. that had lived at the same time as had other legendary mammals -- Incorrect. Usage of two past perfect does not make sense. Both the actions occurred simultaneously.

C. that lived at the same time those others had -- Incorrect. No comparison marker here. Also incorrect tenses. Past perfect (had) is not needed and contradicts "same time"

D. living at the same time as those others did -- Incorrect. "those" has no referent. Also "living" conveys that the mastodon is still living.

E. living at the same time as those were -- Incorrect. Same as E.

Scientists theorize that tuberculosis may be responsible for the extin

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Scientists theorize that tuberculosis may be responsible for the extin

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615 to 715 in 15 Days (Ria's Strategies)

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