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This is a classic example in which knowing an idiom can make a question relatively easy. Not knowing the proper idiom, on the other hand, well the question becomes a little more difficult. With this question we at least have a little more to go on. First off, 'economical' vs. 'economic'; to be 'economical' is to frugal. Clearly caterpillars who spend their money wisely is not what the sentence is trying to convey. Out with (B), (C), and (E). (D) is a classic comma splice, leaving us with (A). _________________
Re: Though caterpillars transform large amounts of plant matter [#permalink]
23 Jun 2013, 18:42
Answer: A Though caterpillars transform large amounts of plant matter into animal tissue and wastes, and therefore hold an important place in the food chain, they are so voracious that they have become an economic threat to farmers whose crops they eat.
(A) they are so voracious that they have become an economic (B) they are of such voracity, they have become an economical (C) so voracious are they as to become an economical (D) such is their voracity, they become an economic (E) there is so much voracity that it has become an economical
Breaking it down: economical - is incorrect word - that means frugal, hence B, C and E can be removed. such is used incorrectly here, it is used to show examples, which is incorrect usage here. Remove D
Re: Though caterpillars transform large amounts of plant matter
23 Jun 2013, 18:42
Check out this awesome article about Anderson on Poets Quants, http://poetsandquants.com/2015/01/02/uclas-anderson-school-morphs-into-a-friendly-tech-hub/ . Anderson is a great place! Sorry for the lack of updates recently. I...