vibhav wrote:
Guys, the OE says: ' Explanation: In this type of sentence correction problem you need to focus on parallelism and verb form. At the end of the sentence, if you say “did not” you should ask “did not” what? The general rule is that there needs to be a verb that is being replaced by “did”. In this example, there isn’t a verb, just a participle, so the structure would not be parallel: You cannot say “some showing this, while others did not show this” or “some showing this and others did not show this” As a result, (A), (B), and (C) are all incorrect. In (D), you would need a complete clause after while with a comma and all you have is “while others not showing” Only (E) creates a parallel structure with two participles following nouns after the preposition “with” (the second participle is understood): “with some showing this and others not showing this” Answer is (E). '
Any idea whats the logic of while and comma need a clause?
Hi vibhav.
In this question, WHILE is "
subordinating conjunction".
Subordinating conjunctions join two clauses together. Thus, if you use "while", two clauses are required to make a sentence grammatical. Otherwise, you should use "
coordinating conjunction" (and, but, so, yet, for...). Thus E is better than D, and is correct.
Hope it's clear.
Can you elaborate bit more why E is better.
Even within the same study, people responded quite differently to acupuncture, some showing an increase in flexibility, while others not [showing increase in flexibility]