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According to a government study, the lush swamps and marshes of the Mississippi Delta, among the finest wetlands in the world, are vanishing at a rate of 39 square miles a year, as fast as two and a half times the rate that was previously thought.
A) as fast as two and a half times the rate that was
B) two and a half times as fast as it had been
C) two and a half times faster than
D) a rate two and a half times as fast as
E) which is a rate two and a half times faster than had been
I selected A. But the OA is B. Could you please explain in details.
What is the flaw in A?
I think the tense is correct. --> " the rate that was previously thought"
But i'm not sure about the comparison structure of "two and a half times as fast as" and "as fast as two and a half times". Are both of them in a correct form?
Thank you. :-D
A) as fast as two and a half times the rate that was
B) two and a half times as fast as it had been
C) two and a half times faster than
D) a rate two and a half times as fast as
E) which is a rate two and a half times faster than had been
I selected A. But the OA is B. Could you please explain in details.
What is the flaw in A?
I think the tense is correct. --> " the rate that was previously thought"
But i'm not sure about the comparison structure of "two and a half times as fast as" and "as fast as two and a half times". Are both of them in a correct form?
Thank you. :-D
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Thank you for understanding, and happy exploring!
In my mind 'as fast as' is already comparing identical rates -- Person 1 runs as fast as Person 2 does or Person 2 runs twice as fast as Person 3 so there is no need for 'rate' in choice A.
You could however say a rate two and a half times faster than...but note you drop the usage of 'as' in this construction.
Hence B is better than A.
You could however say a rate two and a half times faster than...but note you drop the usage of 'as' in this construction.
Hence B is better than A.
