BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

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.

★★★★★5.0559 reviews
GMATBootcamp Starts Sep 21
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE BOOTCAMP

Live Online Bootcamp Class with Top GMAT Expert Chris Peckover

Sep 21 to Oct 9, 2026

Schedule
Mon to Fri · 7:00 to 10:00 PM ET
Included
Live classes + 6 months of TTP OnDemand
  • Boost your GMAT score in less than one month in a live online class
  • 6 months access to TTP OnDemand video courses included
View bootcamp & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

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
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start 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
Start free 5-day trial
Read 559 reviewsTarget Test Prep

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

Shifting Tectonic Plates - Kaplan

Expert replies
Post new topic Locked
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 145
Joined: Fri Jan 18, 2013 8:27 am
Thanked: 7 times
by sparkles3144 » Sat May 03, 2014 5:01 pm
Scientists are currently trying to determine the extent to which tectonic plates have been shifted from their previous positions by earthquakes and other similar phenomena.

A. to which tectonic plates have been shifted
B. to which tectonic plates have shifted
C. of the shift of tectonic plates
D. of tectonic plate shifting
E. that tectonic plates have been shifted

Answer A

Kaplan explanation for C:
You can eliminate C because of the shift...to earthquakes is incomplete without a verb.
What does that mean?

Also, is extent of wrong?

Thanks!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Sentence Correction |
Legendary Member
Posts: 774
Joined: Mon Jan 23, 2012 4:32 amFollowed by: 14 members
Thanked: 46 times

by aditya8062 » Sat May 03, 2014 8:46 pm
there are different ways in which u can see this problem .the fact that the non underlined portion of this sentence has the construction "by earthquakes and other similar phenomena" so we need a passive voice construction .that passive voice verb is missing if C were the answer !!
in fact it is precisely for this reason that A is the answer and not B
also "extent of" per se is not wrong
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 39
Joined: Sat Mar 15, 2014 10:36 pm
Thanked: 1 times

by raj44 » Sat May 03, 2014 9:20 pm
Hi,

Options C,D,E are not idiomatically consistent in the context of the sentence. Since author is trying to emphasize on the "degree" or "level" of shift from their previous positions, the idiom "EXTENT TO" is appropriate rather than "EXTENT OF" or "EXTENT THAT". Now, between choice A and B present perfect continuous is needed, though I feel it should have been "SHIFTING" instead of "SHIFTED".
sparkles3144 wrote:Scientists are currently trying to determine the extent to which tectonic plates have been shifted from their previous positions by earthquakes and other similar phenomena.

A. to which tectonic plates have been shifted
B. to which tectonic plates have shifted
C. of the shift of tectonic plates
D. of tectonic plate shifting
E. that tectonic plates have been shifted

Answer A

Kaplan explanation for C:
You can eliminate C because of the shift...to earthquakes is incomplete without a verb.
What does that mean?

Also, is extent of wrong?

Thanks!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 223
Joined: Thu Dec 05, 2013 4:22 amFollowed by: 8 members
Thanked: 12 times

by AnjaliOberoi » Sat May 03, 2014 11:53 pm
Non underlined portion of the sentence says - by earthquakes and other similar phenomena, which means a passive construction is required. Based upon this, we eliminate B, C and D.

Extent to is correct usage in this context.so, E eliminated

A is the best answer
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Locked
• Page 1 of 1