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A team of researchers reported that five endangered birds species had

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Intern
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Re: A team of researchers reported that five endangered birds species had  [#permalink]

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New post 20 Jul 2019, 15:25
GMATNinja

Can you please explain why D is correct? Why I eliminated D was because of the parallelism error. Is this an exception?
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Re: A team of researchers reported that five endangered birds species had  [#permalink]

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New post 21 Jul 2019, 11:05
if we see a split between the same tense and changed tense in parallel pattern, find a reason for changing tense. in this question, logic is a reason for changing tense. for most of questions on official sources, there is no reason for changing tense and the choice with changed tense is wrong
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Re: A team of researchers reported that five endangered birds species had  [#permalink]

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New post 28 Jul 2019, 10:37
Hi there, could you kindly explain why is it D and Why not C, C can be parallel too, nesting or investigating, but it is very confusing. Could you break down the entire question and solve my query after doing so?
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A team of researchers reported that five endangered birds species had  [#permalink]

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New post 28 Jul 2019, 22:50
aakash214 wrote:
GMATNinja

Can you please explain why D is correct? Why I eliminated D was because of the parallelism error. Is this an exception?
It'd help if you could let us know how you read this sentence.

A team of researchers reported that five endangered birds species had resumed nesting or were investigating nesting boxes erected by volunteers ferried out to the island last month.

The two verbs here (had resumed and were investigating) are parallel. Ignore erected by (modifier for nesting boxes) and ferried (modifier for volunteers). Also, don't try to apply "tense parallelism". Verbs may or may not have the same tense. It's a meaning call, and the meaning here is that there were two types of birds (bird species): (a) ones that had already resumed nesting and (b) ones that were investigating the nesting boxes left by volunteers.
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A team of researchers reported that five endangered birds species had   [#permalink] 28 Jul 2019, 22:50

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