Source: gmatprep ep2
A team of researchers reported that five endangered birds 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
Please explain this problem in terms of meaning and concepts being tested.
A team of researchers reported that five endangered birds
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A: volunteers having been ferriedconquistador wrote:Source: gmatprep ep2
A team of researchers reported that five endangered birds 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
Please explain this problem in terms of meaning and concepts being tested.
NOUN + having + VERBed is ALWAYS WRONG.
Eliminate A.
A COMMA + VERBing modifier must serve to refer to the PRECEDING SUBJECT.
B: birds species had...begun nesting boxes erected by volunteers, being ferried
Here, being ferried seems to refer to bird species -- the preceding subject -- implying that BIRD SPECIES were BEING FERRIED out to the island.
The intended meaning is that VOLUNTEERS were ferried out to the island.
Eliminate B.
Parallel forms should serve the SAME FUNCTION.
C: nesting boxes, erected by volunteers, ferried out to the island
Here, COMMA + erected and COMMA + ferried are parallel forms.
As a result, both modifiers seem to refer to nesting boxes, implying that NESTING BOXES were FERRIED OUT to the island.
The intended meaning is that VOLUNTEERS were ferried out to the island.
Eliminate C.
E: bird species had resumed...or investigate
Here, there is no justification for mixing the past perfect tense (had resumed) and the present tense (investigate).
Eliminate E.
The correct answer is D.
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Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at [email protected].
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conquistador wrote:Source: gmatprep ep2
A team of researchers reported that five endangered birds 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
in b, "begun" grammatically mean "have begun. so "sepcies have begun investing". this is not logic
in c, "investing" means " species resume investigating" . this is not logic
in e, "which" refers to boxes . this is not logic. "investigate" is at present tense . there is no reason for change of tense.