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# In 1800, nearly 25 years after he discovered methane gas,

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Director
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In 1800, nearly 25 years after he discovered methane gas, [#permalink]

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05 Dec 2006, 09:49
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In 1800, nearly 25 years after he discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, developed the voltaic pile, the first electric battery.

he discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, developed
his discovery of methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, developed
his discovery of methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, had developed
he discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, had developed
he had discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, he developed

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Senior Manager
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05 Dec 2006, 11:32
A is my choice for following reasons.

first I think we need 'he' rathar than 'his' since 'his' is a possessive pronoun and can't refer to a subject noun.( Please correct if I am wrong here)
Second is tense..we need simple past 'developed' rathar than 'had developed'

karlfurt wrote:
In 1800, nearly 25 years after he discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, developed the voltaic pile, the first electric battery.

he discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, developed
his discovery of methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, developed
his discovery of methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, had developed
he discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, had developed
he had discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, he developed

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VP
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05 Dec 2006, 18:35
arjsingh1976 wrote:
A is my choice for following reasons.

first I think we need 'he' rathar than 'his' since 'his' is a possessive pronoun and can't refer to a subject noun.( Please correct if I am wrong here)
Second is tense..we need simple past 'developed' rathar than 'had developed'

karlfurt wrote:
In 1800, nearly 25 years after he discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, developed the voltaic pile, the first electric battery.

he discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, developed
his discovery of methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, developed
his discovery of methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, had developed
he discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, had developed
he had discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, he developed

Correct possessive pronouns can refer back to posessive nouns only

and we need a simple past here and the use of perfect tense inst necessary

A stands

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05 Dec 2006, 19:34
My pick is B.

When we have two events in the past, dont we have to clearly indicate the sequence by using past perfect tense?

Arjsingh/trivikram , can you please explain why possessive pronoun can't refer back to the noun? I would really appreciate it....

What is OA?
Thanks

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05 Dec 2006, 20:20
My pick is B.

When we have two events in the past, dont we have to clearly indicate the sequence by using past perfect tense?

Arjsingh/trivikram , can you please explain why possessive pronoun can't refer back to the noun? I would really appreciate it....

What is OA?
Thanks

My favourite example from MGMAT

Jose's room is so messy that HIS mother calls HIM a pig

Jose's is a posessive noun and HIS is a posessive pronoun.

HIS can refer to Jose's 'cos of the above reason.

But the objective pronoun HIM is wrong here 'cos it cannot refer to a posessive noun (Jose's in this case).

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05 Dec 2006, 21:11
So then why "his" is wrong? Could some one explain?

I mean what is wrong with B

In A both tense are past (but events separated by 25 years, can we still use past tense for both?)

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06 Dec 2006, 04:33
Is there anyone who wants to take his chance. This SC is really interesting.

Last edited by karlfurt on 06 Dec 2006, 04:59, edited 1 time in total.

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06 Dec 2006, 04:39
I have the same doubt

a) In addition to her discovery of ..., Mary's contributions include ...
b) In addition to her discovery of ..., Mary contributed ....

How does one tells ?
_________________

livin in a prison island...

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06 Dec 2006, 06:08
Trivikram,

Thanks for explaining it.

Does that mean the right sentence will be?
Jose's room is so messy that HIS mother calls Jose a pig .

Or does the entire sentence have to to be restructured?

Thanks

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06 Dec 2006, 07:53
i agree with A.

C D are wrong with past tense.
E is wrong also because of past tense.

B using noun is not so good as A's direct sentence.

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06 Dec 2006, 08:15
trivikram wrote:

Correct possessive pronouns can refer back to posessive nouns only

and we need a simple past here and the use of perfect tense inst necessary

A stands

I don't agree that it is the only case where possessive pronouns can be used correctly.

The man owns a car and a bicycle but his car is broken.
'His' can refer to the man, which is the subject and not a possessive. And that doesn't contradict your example from MGMAT.

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06 Dec 2006, 13:14
A looks just fine here...

he discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, developed
his discovery of methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, developed
his discovery of methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, had developed
he discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, had developed - HE HAD DEVELOPED METHANE EARLER SO THE 'HAD' role needs swaping.
he had discovered methane gas, Allessando Volta, one of the most famous Italian physicists of the 18th century, he developed

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07 Dec 2006, 03:29

You were right, one verb has to be past perfect, and the other one simple past. And there is no mistake about the usage of the pronoun.

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07 Dec 2006, 05:49
karlfurt wrote:

You were right, one verb has to be past perfect, and the other one simple past. And there is no mistake about the usage of the pronoun.

But how?

Flip A and B and see

Allessando Volta, one of the most famous Italian physicists of the 18th century, developed the voltaic pile, the first electric battery in 1800, nearly 25 years after he discovered methane gas

Allessando Volta, one of the most famous Italian physicists of the 18th century, developed the voltaic pile, the first electric battery in 1800, nearly 25 years after his discovery of methane gas.

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07 Dec 2006, 06:52
trivikram wrote:
karlfurt wrote:

You were right, one verb has to be past perfect, and the other one simple past. And there is no mistake about the usage of the pronoun.

But how?

Flip A and B and see

Allessando Volta, one of the most famous Italian physicists of the 18th century, developed the voltaic pile, the first electric battery in 1800, nearly 25 years after he discovered methane gas

Allessando Volta, one of the most famous Italian physicists of the 18th century, developed the voltaic pile, the first electric battery in 1800, nearly 25 years after his discovery of methane gas.

I see and what?

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07 Dec 2006, 13:45
Does any one remember any OG question which says that possessive pronoun can only refer back to possessive noun.

As per Manhatten SC guide 'possessive pronouns can refer back to possessive nouns'. Word 'can' is a loose term here.

Can some one explain this point with accuracy and detail?
Thanks

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07 Dec 2006, 13:45
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