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# In July 2002, scientists announced the discovery of the

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In July 2002, scientists announced the discovery of the [#permalink]

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13 Apr 2010, 09:27
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80% (01:01) correct 20% (00:37) wrong based on 12 sessions

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In July 2002, scientists announced the discovery of the first living creature on Earth to walk on four legs and which was 350 million years old.
A) In July 2002, scientists announced the discovery of the first living creature on Earth to walk on four legs and which was 350 million years old.
B) Scientists announced the discovery on Earth of the first living creature which walked on four legs and which was 350 million years old in July 2002.
C) Scientists announced the discovery on Earth of the first living creature in July 2002 which walked on four legs and which was 350 million years old.
D) In July 2002, scientists announced the discovery of the first living creature on Earth which walked on four legs and which was 350 million years old.
E) Scientists announced the discovery of the first 350 million-year-old living creature on Earth to walk on four legs in July 2002.
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Re: scientists announced the discovery [#permalink]

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13 Apr 2010, 09:42
In July 2002, scientists announced the discovery of the first living creature on Earth to walk on four legs and which was 350 million years old.

to walk on is not the correct usage here. So that leaves us B,C and D

B) Scientists announced the discovery on Earth of the first living creature which walked on four legs and which was 350 million years old in July 2002. >> Discovery on..?
C) Scientists announced the discovery on Earth of the first living creature in July 2002 which walked on four legs and which was 350 million years old.>> Discovery on..?
D) In July 2002, scientists announced the discovery of the first living creature on Earth which walked on four legs and which was 350 million years old. >> This is correct.

My Ans is D.
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Re: scientists announced the discovery [#permalink]

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13 Apr 2010, 09:58
Option D

It's easier to arrive at the correct option with POE, all other choices have significant errors

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Re: scientists announced the discovery [#permalink]

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13 Apr 2010, 11:06
I did not notice "to walk on" and picked (E)

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Re: scientists announced the discovery [#permalink]

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14 Apr 2010, 15:07
+ 1 D

That's an easy one.

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Re: scientists announced the discovery [#permalink]

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16 Apr 2010, 11:20
In July 2002, scientists announced the discovery of the first living creature on Earth to walk on four legs and which was 350 million years old.
A) In July 2002, scientists announced the discovery of the first living creature on Earth to walk on four legs and which was 350 million years old.
=> This means that scientists announced the discovery to walk on four legs. Their main aim was to walk on four legs.
B) Scientists announced the discovery on Earth of the first living creature which walked on four legs and which was 350 million years old in July 2002.
=> The use of which is not correct.
C) Scientists announced the discovery on Earth of the first living creature in July 2002 which walked on four legs and which was 350 million years old.
=> The use of which is not correct.
D) In July 2002, scientists announced the discovery of the first living creature on Earth which walked on four legs and which was 350 million years old.
===> This choice is not correct but best of the worst options. The use of which is not correct. Before which we should always use comma. All OG's (OG10, 11, 12) say that "which" should be used as non-restrictive. That means we should use comma before which.
E) Scientists announced the discovery of the first 350 million-year-old living creature on Earth to walk on four legs in July 2002.
=> The problem is in "to walk".

Some thoughts:
1. Pay attention on the meaning of the sentence:
Example:
I discovered some techniques to solve the problems.
=> Why did I discover? To solve the problems.
2. Whenever we use "which" we should use comma before "which", which should be used as non-restrictive clause.
Example:
I live in a Delhi, which is the capital of India.
=> I live in a city that is the capital of India.

If comma is not used before "which" in option D, none of the options is right.

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Re: scientists announced the discovery   [#permalink] 16 Apr 2010, 11:20
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