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100 points for $49 worth of Veritas practice GMATs FREE VERITAS PRACTICE GMAT EXAMS Earn 10 Points Per Post Earn 10 Points Per Thanks Earn 10 Points Per Upvote ## SC, Difficulty level: 700, SVA, Source: VeritasPrep tagged by: aishwaryav12 ##### This topic has 2 member replies ## SC, Difficulty level: 700, SVA, Source: VeritasPrep A wave of new seltzer bars and bottle shops - all opened in the last two years, with some serving mostly alcoholic versions while others do not - are fueling interest in this formerly low-prestige beverage. (A) with some serving mostly alcoholic versions while others do not - are (B) with some serving mostly alcoholic versions and others not - are (C) and some serving mostly alcoholic versions while others do not - is (D) some serving mostly alcoholic versions and others not - is (E) with some serving mostly alcoholic versions and others do not - is Junior | Next Rank: 30 Posts Joined 07 May 2018 Posted: 25 messages Target GMAT Score: 730 GMAT Score: 610 Subject is 'A wave' and we need a singular verb for this. Hence, A and B are out. Next we have elimination in 2nd part of em- dash. When we omit the verb form from the second part, we need to make sure the form we are using matches the form used previously. The verb form in the first part is "serving" which should match with second part 'not' (serving being omitted). Hence, Correct answer is D ### Top Member GMAT Instructor Joined 20 Jul 2015 Posted: 155 messages Followed by: 4 members Hello! Let's take a look at this question, one issue at a time, and narrow the options down to the right one! First, here is the original question, with the major differences between each option highlighted in orange: A wave of new seltzer bars and bottle shops - all opened in the last two years, with some serving mostly alcoholic versions while others do not - are fueling interest in this formerly low-prestige beverage. (A) with some serving mostly alcoholic versions while others do not - are (B) with some serving mostly alcoholic versions and others not - are (C) and some serving mostly alcoholic versions while others do not - is (D) some serving mostly alcoholic versions and others not - is (E) with some serving mostly alcoholic versions and others do not - is After a quick glance over the options, a few key differences jump out: 1. with some / and some / some 2. and others not / while others do not / and others do not 3. is / are Let's start with #3 on our list (is/are) because, regardless of which one we choose, it will eliminate 2-3 options right off the bat. This is an issue of subject-verb agreement. The subject of the sentence is "A wave," which is singular. That means we MUST use a singular verb to match! Let's see how each option breaks down: (A) with some serving mostly alcoholic versions while others do not - are (B) with some serving mostly alcoholic versions and others not - are (C) and some serving mostly alcoholic versions while others do not - is (D) some serving mostly alcoholic versions and others not - is (E) with some serving mostly alcoholic versions and others do not - is We can eliminate options A & B because they use a plural verb (are) for a singular subject (A wave), which doesn't match! Now, let's move on to #1 and #2 on the list. If we look at these together, it becomes an issue of parallel structure! Whenever it appears that the writer omits the verb from one half of the statement, it still needs to be parallel. The best way to check for that is to add the verb back in where it was omitted from. If it makes sense with the verb there, it's okay. If it doesn't make sense, it's not parallel. Let's take a close look at each option and figure out if they use parallel structure or not: (C) and some serving mostly alcoholic versions while others do not - is This is INCORRECT. If we add the verb back into the second half of the statement, we get this: and some serving mostly alcoholic versions while others do not serving them --> WRONG (D) some serving mostly alcoholic versions and others not - is This is CORRECT. If we add the verb back into the second half of the statement, we get this: some serving mostly alcoholic version and others not serving them --> RIGHT (E) with some serving mostly alcoholic versions and others do not - is This is INCORRECT. If we add the verb back into the second half of the statement, we get this: with some serving mostly alcoholic versions and others do not serving them --> WRONG There you have it - option D is correct because it uses proper subject-verb agreement and parallel structure! I hope this helps! Don't study for the GMAT. Train for it. • Get 300+ Practice Questions 25 Video lessons and 6 Webinars for FREE Available with Beat the GMAT members only code • Award-winning private GMAT tutoring Register now and save up to$200

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