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# GMAT Prep : Practice Exam 5 : SC : Usage of Past Perfect

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Intern
Joined: 07 May 2016
Posts: 47
Location: India
Concentration: Other, Entrepreneurship
Schools: IIMA (D)
GMAT Prep : Practice Exam 5 : SC : Usage of Past Perfect  [#permalink]

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08 Aug 2016, 03:13
Hi EGMAT Expert,

I have a query in a Question from GMAT prep : Practice Exam 5.

Question

A team of researchers reported that five endangered bird species had resumed nesting or investigated nesting boxes erected by volunteers having been ferried out to the island last month.

(a) investigated nesting boxes erected by volunteers having been

(b) begun investigating nesting boxes erected by volunteers, being

(c) investigating nesting boxes, erected by volunteers,

(d) were investigating nesting boxes erected by volunteers

(e) investigate nesting boxes erected by volunteers, which

I am not able to understand the usage of Past perfect in the correct sentence.

Substituting the correct option choice D in original sentence

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

.... Past Perfect

or

Bird species were investigating nesting boxes
...Past Continuous

I understand that Past Perfect is used to show the sequencing of two actions completed in past.

First Event : Past Perfect; Second Event : Simple Past

No event is expressed using simple past in the sentence above.

Can Past Perfect, Past Continuous be used for sequencing of two events?

Kindly explain how the usage of Past Perfect is correct in the above sentence.

Thanks
Sahil
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GMAT Prep : Practice Exam 5 : SC : Usage of Past Perfect &nbs [#permalink] 08 Aug 2016, 03:13
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