Live GMAT classes with Target Test Prep start Nov 1 and Nov 21. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 1
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 1 · Josh Braslow
Sun · 1:00 to 4:00 PM ET
Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemand5 seats leftStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

Berlin Wall

Expert replies
by bsandhyav » Thu Dec 04, 2008 7:33 pm
Since 1989, after the Berlin Wall had been demolished, one of the most problematic ethnic groups in the reunified Germany, in cultural and economic assimilation terms, were the former East Germans, who have had to acclimate to an entirely different political system.

after the Berlin Wall had been demolished, one of the most problematic ethnic groups in the reunified German, in cultural and economic assimilation terms, were the former East Germans

after the Berlin Wall was demolished, one of the most problematic ethnic groups in the reunified Germany, in cultural terms as well as those of economic assimilation, were the former East Germans

when the Berlin Wall was demolished, one of the reunified Germany's most problematic ethnic groups, in terms of cultural and economic assimilation, was the former East Germans

when the Berlin Wall was demolished, one of the most problematic ethnic groups in the reunified Germany, in terms of cultural and economic assimilation, has been the former East Germans

after the Berlin Wall had been demolished, one of the most problematic ethnic groups in the reunified Germany, in both terms of cultural and economic assimilation, have been the former East Germans
Join the discussion
Source: — Sentence Correction |

Re: Berlin Wall

by iamcste » Fri Dec 05, 2008 2:39 am
bsandhyav wrote:Since 1989, after the Berlin Wall had been demolished, one of the most problematic ethnic groups in the reunified Germany, in cultural and economic assimilation terms, were the former East Germans, who have had to acclimate to an entirely different political system.

after the Berlin Wall had been demolished, one of the most problematic ethnic groups in the reunified German, in cultural and economic assimilation terms, were the former East Germans

after the Berlin Wall was demolished, one of the most problematic ethnic groups in the reunified Germany, in cultural terms as well as those of economic assimilation, were the former East Germans

when the Berlin Wall was demolished, one of the reunified Germany's most problematic ethnic groups, in terms of cultural and economic assimilation, was the former East Germans

when the Berlin Wall was demolished, one of the most problematic ethnic groups in the reunified Germany, in terms of cultural and economic assimilation, has been the former East Germans

after the Berlin Wall had been demolished, one of the most problematic ethnic groups in the reunified Germany, in both terms of cultural and economic assimilation, have been the former East Germans

D. A nice question

My approach

Since- Present perfect ( thats just a hint) you need to actually verify


1989--------------------------------->--------------------------------current

Berlin wall demolised;
problem begins

As you see, we dont have 2 past events occuring at different time intervals hence past perfect tense-"had" is out of chance


so, I narrowed down to D.


Other approaches:

Subject verb agreement

In all "one of the X that ...." constructions, verb should agree with X.

e.g. one of the factors that are......

In all "one of the X..." (without a relative pronoun that, who etc), verb should be singular.

e.g. one of my friends is.....

hence verb singular "has" Eliminate A,B, E

( C-since 1989, hence "was" is not apt)

Idiom lovers

In E, Both X and Y with X and Y parallel is not successfully implemented

IMO D
Last edited by iamcste on Fri Dec 05, 2008 3:27 am, edited 1 time in total.
Join the discussion

by raunekk » Fri Dec 05, 2008 3:16 am
imo:D


tense and modifier problem..
Join the discussion

by Anaira Mitch » Fri Sep 15, 2017 3:19 am
The subject of the sentence is "one of the most problematic ethnic groups", a singular noun.
The verb, however, is "were," which is plural. We need to find a choice that uses a singular
verb instead.

(A) This choice is the same as the original sentence.

(B) This choice does not correct the subject-verb issue; it still uses "were" to refer to "group."

(C) This choice uses the singular "was," but the simple past is not the appropriate tense here because
of the ongoing nature of the problem. Moreover, "the reunified Germany's most problematic ethnic
groups" is an awkward construction.

(D) CORRECT. This choice uses the singular "has been," which is also in the present perfect tense,
indicating the ongoing nature of the problem. Moreover, "in terms of cultural and economic
assimilation" is a more idiomatic and elegant phrasing than that of the original.

(E) This choice does not correct the subject-verb issue; it uses "have been" to refer to "group."
Join the discussion