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# Some bat caves, like honeybee hives, have residents that

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Director
Joined: 27 Jun 2005
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Location: MS
Some bat caves, like honeybee hives, have residents that [#permalink]

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08 Feb 2006, 09:32
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Some bat caves, like honeybee hives, have residents that take on different duties such as defending the
entrance, acting as sentinels and to sound a warning at the approach of danger, and scouting outside the
cave for new food and roosting sites.
(A) acting as sentinels and to sound
(B) acting as sentinels and sounding
(C) to act as sentinels and sound
(D) to act as sentinels and to sound
(E) to act as a sentinel sounding

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VP
Joined: 20 Sep 2005
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08 Feb 2006, 23:23
I will pick B though ---- "and" sounding is ackward.

Any ideas why the "and" is needed ?

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Manager
Joined: 01 Feb 2006
Posts: 100

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09 Feb 2006, 07:38
lhotseface wrote:
I will pick B though ---- "and" sounding is ackward.

Any ideas why the "and" is needed ?
sounding the alarm is part of acting as a sentinel.

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Director
Joined: 27 Jun 2005
Posts: 502

Kudos [?]: 161 [0], given: 0

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09 Feb 2006, 07:38
OA is B

lhotseface,

yes, "and" is confusing but if you look at that structure it like this

.. on different duties such as A, B and C, and D.

so, there is sub parallelism between B and C.

cj

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09 Feb 2006, 07:38
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