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SC-161,SC-163

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Manager
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Joined: 02 Jul 2007
Posts: 76

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SC-161,SC-163 [#permalink]

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New post 12 Aug 2008, 23:48
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A
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C
D
E

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Guys,

Please help

Based on the growth rates of large modern reptiles such as the Galapagos tortoise and examinations of fossils of juvenile dinosaurs, scientists estimate that the largest dinosaurs probably lived to be between 100 and 200 years old.

A. Based on the growth rates of large modern reptiles such as

B. On the basis of growth rates of large modern reptiles such as

C. Based on the growth rates of large modern reptiles like

D. On the basis of growth rates of large modern reptiles, like those of

E. Based on such growth rates as those of large modern reptiles like

Because Halleys comet changes orbit slightly during the seventy-six-year interval between passing close to Earth, it may veer onto a collision course with a planet sometime in the distant future.

A. between passing

B. of passing

C. between its passes

D. of its passes

E. as it passes

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Director
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Re: SC-161,SC-163 [#permalink]

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New post 13 Aug 2008, 00:25
don2007 wrote:
Guys,

Please help

Based on the growth rates of large modern reptiles such as the Galapagos tortoise and examinations of fossils of juvenile dinosaurs, scientists estimate that the largest dinosaurs probably lived to be between 100 and 200 years old.

A. Based on the growth rates of large modern reptiles such as

B. On the basis of growth rates of large modern reptiles such as

C. Based on the growth rates of large modern reptiles like

D. On the basis of growth rates of large modern reptiles, like those of

E. Based on such growth rates as those of large modern reptiles like

here the underlined clause modifies "scientists". so A,C,E are out.

modern reptiles such as X, Y is correct. "like those of examinations of fossils of juvenile dinosaurs" sounds crazy.


Because Halleys comet changes orbit slightly during the seventy-six-year interval between passing close to Earth, it may veer onto a collision course with a planet sometime in the distant future.

A. between passing

B. of passing

C. between its passes

D. of its passes

E. as it passes




Between C & D
IMO A & B are wrong because they give me impression that the comet passes only once.
E too sounds strange "interval as" sounds weird!
In between, "interval of its passes" and "interval between its passes"
the later sounds better.

C for me, but I can be wrong.

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Senior Manager
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Re: SC-161,SC-163 [#permalink]

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New post 13 Aug 2008, 11:49
A) Scientists cannot be based on something
B) Works
C) Scientists cannot be based on something
D) 'like those of' is incorrect since it's giving an hard example
E) Scientists cannot be based on something

A) awkward
B) cannot change orbit during 'of passing'
C) works
D) awkward
E) intervals are not doing the passing

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Director
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Re: SC-161,SC-163 [#permalink]

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New post 13 Aug 2008, 12:05
A. Based on the growth rates of large modern reptiles such as

B. On the basis of growth rates of large modern reptiles such as

C. Based on the growth rates of large modern reptiles like

D. On the basis of growth rates of large modern reptiles, like those of

E. Based on such growth rates as those of large modern reptiles like

on the basis modifies “scientists’ more appropriately than “based on’
Eliminate A, C and E

Between B and D: like those of in D incorrectly refers “Galapagos tortoise’

Answer: B


*****************

A. between passing

B. of passing

C. between its passes

D. of its passes

E. as it passes

Between modifies interval – so eliminate B, D and E
Between A and C

C Is preferred

Answer: C

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Senior Manager
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Joined: 31 Jul 2008
Posts: 290

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Re: SC-161,SC-163 [#permalink]

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New post 13 Aug 2008, 16:54
for the 2 SC

dont you guys think that the pronoun it/its is ambiguous ; It might refer to comet OR interval ..huh ??

for B looks good

please lemme know wht exactly m i thinking wrong in guessing it

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Re: SC-161,SC-163   [#permalink] 13 Aug 2008, 16:54
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