Bunuel wrote:
GMAT weekly questions
Bufo marinus toads, fierce predators that will eat frogs, lizards, and even small birds,
are native to South America but were introduced into Florida during the 1930âs in an attempt to control pests in the stateâs vast sugarcane fields.
A. are native to South America but were introduced into Florida during the 1930âs in an attempt to control
B. are native in South America but were introduced into Florida during the 1930âs as attempts to control
C. are natives of South America but were introduced into Florida during the 1930âs in an attempt at controlling
D. had been native to South America but were introduced to Florida during the 1930âs as an attempt at controlling
E. had been natives of South America but were introduced to Florida during the 1930âs as attempts at controlling
Choice A is indeed the answer.
'native to' and 'in an attempt to' are correct usages
Choice A : This choice uses idiomatic expressions 'native to' and 'in an attempt to'. Simple Present tense in 'Toads are native to' is correct to express the fact.
Choice B : 'native in' and 'as attempts to' are incorrect.
Choice C : 'natives of' is accepted when referred to People and not when referred to Animals.
Choice D : Usage of 'had been' is illogical. It suggests that toads are no more native to South America, which is nonsensical.
Choice E : Incorrect for the reasons cited in Choice D and C