GMAT Sentence Correction Discussions

MBA
7072
Many entomologists say that campaigns to eradicate the fire ant in the US have failed because the chemicals that were used were effective in wiping out the ant`s natural enemies, which made it easier for them to spread
a) the same
b) which makes it easier for it
c) thus making it easier for them
d) thus making it easier for the ant
e) thereby, it was made easier for the ant


It should be D, this is the only choice where ant is mentioned. "them" is confusing.
7073
It seems likely that a number of astronomical phenomena, such as the formation of planetary nebulas, may be caused by the interaction where two stars orbit each other at close range.
(A) may be caused by the interaction where two stars orbit each other
(B) is caused by the interaction between two stars that each orbit the other
(C) are because of the interaction between two stars that orbit each other
(D) is caused by the interaction of two stars where each is orbiting the other
(E) are caused by the interaction of two stars orbiting each other

IMO,

it is C parallelism.
7074
It seems likely that a number of astronomical phenomena, such as the formation of planetary nebulas, may be caused by the interaction where two stars orbit each other at close range.
(A) may be caused by the interaction where two stars orbit each other
(B) is caused by the interaction between two stars that each orbit the other
(C) are because of the interaction between two stars that orbit each other
(D) is caused by the interaction of two stars where each is orbiting the other
(E) are caused by the interaction of two stars orbiting each other

IMO,

it is C (parallelism).
7075
It seems likely that a number of astronomical phenomena, such as the formation of planetary nebulas, may be caused by the interaction where two stars orbit each other at close range.
(A) may be caused by the interaction where two stars orbit each other
(B) is caused by the interaction between two stars that each orbit the other
(C) are because of the interaction between two stars that orbit each other
(D) is caused by the interaction of two stars where each is orbiting the other
(E) are caused by the interaction of two stars orbiting each other


ok let me try this one.A is ruled out because it makes a redundancy error. "likely and may be"... B and D is ruled out because of sub-verb agreement. We need plural for "a number of". E changes the meaning of the sentence. C is the answer. Please post OA>.
7076
It seems likely that a number of astronomical phenomena, such as the formation of planetary nebulas, may be caused by the interaction where two stars orbit each other at close range.
(A) may be caused by the interaction where two stars orbit each other
(B) is caused by the interaction between two stars that each orbit the other
(C) are because of the interaction between two stars that orbit each other
(D) is caused by the interaction of two stars where each is orbiting the other
(E) are caused by the interaction of two stars orbiting each other



I thinks the answer is C
A is wordy as , seems likely and may be both are used
a number of ... is plural that cancel B, D
between C and E , I think C is better choice. Answer please
7077

A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.
(A) reduced the amount of phosphates that municipalities had been allowed to dump
(B) reduced the phosphate amount that municipalities had been dumping
(C) reduces the phosphate amount municipalities have been allowed to dump
(D) reduced the amount of phosphates that municipalities are allowed to dump
(E) reduces the amount of phosphates allowed for dumping by municipalities

Please provide explanations.

7078
I thinks the answer is C
A is wordy as , seems likely and may be both are used
a number of ... is plural that cancel B, D
between C and E , I think C is better choice. Answer please


:) too near yet too far..

OA is option E.
7079
A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.
(A) reduced the amount of phosphates that municipalities had been allowed to dump
(B) reduced the phosphate amount that municipalities had been dumping
(C) reduces the phosphate amount municipalities have been allowed to dump
(D) reduced the amount of phosphates that municipalities are allowed to dump
(E) reduces the amount of phosphates allowed for dumping by municipalities

Please provide explanations.


a. wrong use of had been - no comparison between two past events.
b. same as option a
c. reduces is wrong for a past event.
d. looks correct.
e. reduces - same as option C.
7080
A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.
(A) reduced the amount of phosphates that municipalities had been allowed to dump
(B) reduced the phosphate amount that municipalities had been dumping
(C) reduces the phosphate amount municipalities have been allowed to dump
(D) reduced the amount of phosphates that municipalities are allowed to dump
(E) reduces the amount of phosphates allowed for dumping by municipalities

Please provide explanations.


I will go with option D cos "municipalities are allowed to dump"
7081
I thinks the answer is C
A is wordy as , seems likely and may be both are used
a number of ... is plural that cancel B, D
between C and E , I think C is better choice. Answer please

i think answer is E...
plz provide correct answer .
7082
A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.
(A) reduced the amount of phosphates that municipalities had been allowed to dump
(B) reduced the phosphate amount that municipalities had been dumping
(C) reduces the phosphate amount municipalities have been allowed to dump
(D) reduced the amount of phosphates that municipalities are allowed to dump
(E) reduces the amount of phosphates allowed for dumping by municipalities

Please provide explanations.

i think the answer is D..
7083
Many entomologists say that campaigns to eradicate the fire ant in the US have failed because the chemicals that were used were effective in wiping out the ant`s natural enemies, which made it easier for them to spread
a) the same
b) which makes it easier for it
c) thus making it easier for them
d) thus making it easier for the ant
e) thereby, it was made easier for the ant

i think the answer is D
7084

hi all, plz solve the following sentence correction questions:

1.The Lake Manyara Park in Tanzania affords the visitor with unequalled opportunities to photograph lions playing in trees without the aid of telephoto lenses.
(A) The Lake Manyara Park in Tanzania affords the visitor with unequalled opportunities to photograph lions playing in trees without the aid of telephoto lenses.
(B) The Lake Manyara Park in Tanzania permits the visitor unequalled opportunities to photograph lions playing in trees without the aid of telephoto lenses.
(C) The Lake Manyara Park in Tanzania gives the visitor the unequalled opportunity to photograph lions playing in trees without telephoto lenses.
(D) The visitor to the Lake Manyara Park in Tanzania has the unequalled opportunity to photograph lions playing in trees without the aid of telephoto lenses.
(E) Even without the aid of telephoto lenses, the visitor to Tanzania's Lake Manyara Park has an unequalled opportunity to photograph lions playing in trees.
2.The rise in the price of crabmeat and an increase in demand has convinced some Floridians they should try to harvest and sell a species of large crab that lives deep in the waters of the Gulf of Mexico.
(A) has convinced some Floridians they should try to harvest and sell a species of large crab
(B) has convinced some Floridians to try harvesting and selling a large crab species
(C) has convinced some Floridians that they should try the harvest and sale of a large crab species
(D) have convinced some Floridians to try to harvest and sell a species of large crab
(E) have convinced some Floridians to try and harvest and sell a large crab species
3.The skill and the precision of the Anasazi, ancient inhabitants of the Southwest, in measuring the movements of the Sun and Moon is evidenced not only at Chaco Canyon but at a number of other sites.
(A) in measuring the movements of the Sun and Moon is evidenced not only at
(B) in measuring the movements of the Sun and Moon are evidenced not only at
(C) in measuring the movements of the Sun and Moon is evidenced at not only
(D) to measure the movements of the Sun and Moon is evidenced at not only
(E) to measure the movements of the Sun and Moon are evidenced not only at
4.There is ample evidence, derived from the lore of traditional folk medicine, that naturally occurring antibiotics are usually able to be modified to make them a more effective drug.
(A) are usually able to be modified to make them a more effective drug
(B) are usually able to be modified to make them more effective drugs
(C) are usually able to be modified, which makes them more effective drug
(D) can usually be modified to make them a more effective drug
(E) can usually be modified to make them more effective drugs

5.Those who have visited the Grand Canyon have typically seen layers of sediment in the gaping canyon, with different colors that mark the passage of time like the rings in a tree trunk.
(A) seen layers of sediment in the gaping canyon, with different colors that mark
(B) see layers of sediment in the gaping canyon, whose different colors mark
(C) been seeing layers of sediment in the gaping canyon, whose different colors are markers of
(D) been able to see layers of sediment in the gaping canyon, with different colors marking
(E) seen layers of sediment in the gaping canyon, marking by different colors


thanks

7085
deepakraam Says
I will go with option D cos "municipalities are allowed to dump"

a. wrong use of had been - no comparison between two past events.
b. same as option a
c. reduces is wrong for a past event.
d. looks correct.
e. reduces - same as option C.


yes the answer is D
i am confused between A & D

option A: the 1972 agreement reduced the amount of phosphates that were being dumped by the muncipalities (prior to the agreement) into the lake.

so the action of dumping waste by muncipalities could have been taken place ealier than signing of the agreement.

I agree with D, but the meaning gets slightly changes in A, from my interpreatation of option A.

Please tell me the flaw in my reasoning;

P.S: a question from OG 11 & 12
7086
It seems likely that a number of astronomical phenomena, such as the formation of planetary nebulas, may be caused by the interaction where two stars orbit each other at close range.
(A) may be caused by the interaction where two stars orbit each other
(B) is caused by the interaction between two stars that each orbit the other
(C) are because of the interaction between two stars that orbit each other
(D) is caused by the interaction of two stars where each is orbiting the other
(E) are caused by the interaction of two stars orbiting each other


a: 'may be' should not be used with 'likely'
b: second part of the sentence is not correct
c: of the interaction is nt correct
d: 'is' not with 'a number of'
e: is correct
7087
A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.
(A) reduced the amount of phosphates that municipalities had been allowed to dump
(B) reduced the phosphate amount that municipalities had been dumping
(C) reduces the phosphate amount municipalities have been allowed to dump
(D) reduced the amount of phosphates that municipalities are allowed to dump
(E) reduces the amount of phosphates allowed for dumping by municipalities

Please provide explanations.

I go with E
7088
hi all, plz solve the following sentence correction questions:

1. The Lake Manyara Park in Tanzania affords the visitor with unequalled opportunities to photograph lions playing in trees without the aid of telephoto lenses.
(A) The Lake Manyara Park in Tanzania affords the visitor with unequalled opportunities to photograph lions playing in trees without the aid of telephoto lenses.
(B) The Lake Manyara Park in Tanzania permits the visitor unequalled opportunities to photograph lions playing in trees without the aid of telephoto lenses.
(C) The Lake Manyara Park in Tanzania gives the visitor the unequalled opportunity to photograph lions playing in trees without telephoto lenses.
(D) The visitor to the Lake Manyara Park in Tanzania has the unequalled opportunity to photograph lions playing in trees without the aid of telephoto lenses.
(E) Even without the aid of telephoto lenses, the visitor to Tanzanias Lake Manyara Park has an unequalled opportunity to photograph lions playing in trees.
2. The rise in the price of crabmeat and an increase in demand has convinced some Floridians they should try to harvest and sell a species of large crab that lives deep in the waters of the Gulf of Mexico.
(A) has convinced some Floridians they should try to harvest and sell a species of large crab
(B) has convinced some Floridians to try harvesting and selling a large crab species
(C) has convinced some Floridians that they should try the harvest and sale of a large crab species
(D) have convinced some Floridians to try to harvest and sell a species of large crab
(E) have convinced some Floridians to try and harvest and sell a large crab species
3. The skill and the precision of the Anasazi, ancient inhabitants of the Southwest, in measuring the movements of the Sun and Moon is evidenced not only at Chaco Canyon but at a number of other sites.
(A) in measuring the movements of the Sun and Moon is evidenced not only at
(B) in measuring the movements of the Sun and Moon are evidenced not only at
(C) in measuring the movements of the Sun and Moon is evidenced at not only
(D) to measure the movements of the Sun and Moon is evidenced at not only
(E) to measure the movements of the Sun and Moon are evidenced not only at
4. There is ample evidence, derived from the lore of traditional folk medicine, that naturally occurring antibiotics are usually able to be modified to make them a more effective drug.
(A) are usually able to be modified to make them a more effective drug
(B) are usually able to be modified to make them more effective drugs
(C) are usually able to be modified, which makes them more effective drug
(D) can usually be modified to make them a more effective drug
(E) can usually be modified to make them more effective drugs

5. Those who have visited the Grand Canyon have typically seen layers of sediment in the gaping canyon, with different colors that mark the passage of time like the rings in a tree trunk.
(A) seen layers of sediment in the gaping canyon, with different colors that mark
(B) see layers of sediment in the gaping canyon, whose different colors mark
(C) been seeing layers of sediment in the gaping canyon, whose different colors are markers of
(D) been able to see layers of sediment in the gaping canyon, with different colors marking
(E) seen layers of sediment in the gaping canyon, marking by different colors


thanks

my take..

1. e
2. d
3. b
4. e
5. a
7089
hi all, plz solve the following sentence correction questions:

1. The Lake Manyara Park in Tanzania affords the visitor with unequalled opportunities to photograph lions playing in trees without the aid of telephoto lenses.
(A) The Lake Manyara Park in Tanzania affords the visitor with unequalled opportunities to photograph lions playing in trees without the aid of telephoto lenses.
(B) The Lake Manyara Park in Tanzania permits the visitor unequalled opportunities to photograph lions playing in trees without the aid of telephoto lenses.
(C) The Lake Manyara Park in Tanzania gives the visitor the unequalled opportunity to photograph lions playing in trees without telephoto lenses.
(D) The visitor to the Lake Manyara Park in Tanzania has the unequalled opportunity to photograph lions playing in trees without the aid of telephoto lenses.
(E) Even without the aid of telephoto lenses, the visitor to Tanzanias Lake Manyara Park has an unequalled opportunity to photograph lions playing in trees.
2. The rise in the price of crabmeat and an increase in demand has convinced some Floridians they should try to harvest and sell a species of large crab that lives deep in the waters of the Gulf of Mexico.
(A) has convinced some Floridians they should try to harvest and sell a species of large crab
(B) has convinced some Floridians to try harvesting and selling a large crab species
(C) has convinced some Floridians that they should try the harvest and sale of a large crab species
(D) have convinced some Floridians to try to harvest and sell a species of large crab
(E) have convinced some Floridians to try and harvest and sell a large crab species
3. The skill and the precision of the Anasazi, ancient inhabitants of the Southwest, in measuring the movements of the Sun and Moon is evidenced not only at Chaco Canyon but at a number of other sites.
(A) in measuring the movements of the Sun and Moon is evidenced not only at
(B) in measuring the movements of the Sun and Moon are evidenced not only at
(C) in measuring the movements of the Sun and Moon is evidenced at not only
(D) to measure the movements of the Sun and Moon is evidenced at not only
(E) to measure the movements of the Sun and Moon are evidenced not only at
4. There is ample evidence, derived from the lore of traditional folk medicine, that naturally occurring antibiotics are usually able to be modified to make them a more effective drug.
(A) are usually able to be modified to make them a more effective drug
(B) are usually able to be modified to make them more effective drugs
(C) are usually able to be modified, which makes them more effective drug
(D) can usually be modified to make them a more effective drug
(E) can usually be modified to make them more effective drugs

5. Those who have visited the Grand Canyon have typically seen layers of sediment in the gaping canyon, with different colors that mark the passage of time like the rings in a tree trunk.
(A) seen layers of sediment in the gaping canyon, with different colors that mark
(B) see layers of sediment in the gaping canyon, whose different colors mark
(C) been seeing layers of sediment in the gaping canyon, whose different colors are markers of
(D) been able to see layers of sediment in the gaping canyon, with different colors marking
(E) seen layers of sediment in the gaping canyon, marking by different colors


thanks

1.d
2.c
3.c
4.d
5.c
please post the answer with explanation.
7090
MissionPGPX Says
ok let me try this one.A is ruled out because it makes a redundancy error. "likely and may be"... B and D is ruled out because of sub-verb agreement. We need plural for "a number of". E changes the meaning of the sentence. C is the answer. Please post OA>.

It seems likely that a number of astronomical phenomena, such as the formation of planetary nebulas, may be caused by the interaction where two stars orbit each other at close range.
(A) may be caused by the interaction where two stars orbit each other
(B) is caused by the interaction between two stars that each orbit the other
(C) are because of the interaction between two stars that orbit each other
(D) is caused by the interaction of two stars where each is orbiting the other
(E) are caused by the interaction of two stars orbiting each other



A). is reduntant , usage of "may be" also adverb of place "where" is used inppropriately.
B). "a number of phenemenon" is a subject of the sentence and "a number" is always plural om GMAT and its verb "is" does not agree with it so eliminated same is with D.
C). is wrong because of the usage of "because" which is not similar to "caused by" or "due to"
. The sentence conveys that the astronomical phenemneon is caused by the interaction of two stars and not because of interaction. These two clause conveys diffrent meanings.
E). E eliminates the problem with C, subject agrees with its verb. overall a best choice and hence the answer

@Mission PGPX - Dude how was your Test !
7091
A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.
(A) reduced the amount of phosphates that municipalities had been allowed to dump
(B) reduced the phosphate amount that municipalities had been dumping
(C) reduces the phosphate amount municipalities have been allowed to dump
(D) reduced the amount of phosphates that municipalities are allowed to dump
(E) reduces the amount of phosphates allowed for dumping by municipalities

Please provide explanations.


A: Wrong use of tense verb
B: Wrong use of had been, as the agreement would be effective all the way from the day it was passed till future
C: reduces is wrong. The agreement was passed on a certain date in past.
D: Are allowed looks correct as the agreement is considered applicable in present as well.
E: Redcues is worng for reason mentioned in C.

OA please.