Marcab wrote:
hey Kyle.
I think I have found such question.
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
My doubt is :
in A) aren't "Having been prescribed" and "having been taken.." nouns?
in B) isn't "Having a drug prescription" a verb which is being compared to a gerund "being'?
Moreover, in A, should'nt "for example" be followed by a comma?
Will be waiting for your explanation.
Thanks in advance
Interesting example, what is the source? To resoond to your areas of doubt, in A) the phrases are adverbial modifiers (kind of a variant of the perfect tense), so they aren't nouns and in that construction they are parallel. The adverbial modifiers are pretty complex in A, but here is a simpler example showing a similar structure: I went to bed early and didn't eat dinner, having to suffer hunger pains throughout the night. The grammar in this example isn't amazing, but "having" in my example is an adverbial modifier and the adverbial phrase modifies the preceding independent clause. In B) "having" and "being" are both present participles (not verbs) that are acting as modifiers and those participle forms are parallel (though I should note that being is almost always incorrect on the GMAT). Here is a quick example about how those participles aren't verbs: He having a sandwich. That sentence is incomplete because there isn't a verb. In order for a participle to be a verb it needs a helping verb: He is having a sandwich. So while this question might appear to make nouns parallel with verbs, it's just an issue of participles looking like nouns.
Lastly, "for example" is a non-essential phrase in that instance and should be offset by commas and the trailing comma is missing.
KW
_________________