Gmat Sentence Correction 56, 57

56). Some patients who do not respond therapies of depression may simply have received inadequate treatment, having, for example been prescribed a drug as a dosage too low to be effective or having been taken off a drug too soon.

(A). having, for example been prescribed a drug as a dosage too low to be effective or having been

(B). having, for example, a drug prescription that was ineffective because the dosage was too low, or being

(C). as, for example, having too low of a dosage of prescribed drug for it to be effective, or being

(D). when they have, for example, been prescribed too low a drug dosage for it to be effective, or were

(E). for example, when they have a drug prescription with a dosage too low to be effective, or been

57). Officials at the United States Mint believe that the Sacagawea dollar coin will be used more as a substitute for four quarters rather than for the dollar bill because its weight, only 8.1 grams, is far less than four quarters, which weigh 5.67 grams each.

(A). more as a substitute for four quarters rather than for the dollar bill because its weight, only 8.1 grams, is far less than

(B). more as a substitute for four quarters than the dollar bill because it weighs only 8.1 grams, far lighter than

(C). as a substitute for four quarters more than for a dollar bill because it weighs only 8.1 grams, far less than

(D). as a substitute for four quarters more than the dollar bill because its weight of only 8.1 grams is far lighter than it is for
(E). as a substitute more for four quarters rather than for the dollar bill because its weight, only 8.1 grams, is far less than it is for


Answers -

56). A is the best choice. “having….been” is correct usage as it maintains parallelism.

B – incorrect – idea conveyed by this option is that a drug prescription was ineffective which cannot be true.

C – incorrect -- parallelism is violated here – having … being

D – incorrect -- wrong tense and violating parallelism

E – incorrect -- violating parallelism


57). C is the best choice.

A,D,E – incorrect – violating parallelism – it should be “weighs” and not “weights”

B – incorrect – incorrectly comparing “as a substitute” with “four quarters”