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
Start free 5-day trial
Read 563 reviewsTarget Test Prep

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

Essential for vs Essential to

Expert replies
Post new topic Locked
Subscribe topic
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 81
Joined: Tue Jun 11, 2013 10:24 pmFollowed by: 1 member
Thanked: 7 times
by sanjoy18 » Wed Dec 18, 2013 10:19 pm
Federal government financing is an essential key to the survival of the interstate rail system.
A is an essential key in
B is an essential key for
C is essential for
D is essential to
E is essential
Top
Join the discussion
Source: — Sentence Correction |
User avatar
Legendary Member
Posts: 1556
Joined: Tue Aug 14, 2012 11:18 pmFollowed by: 34 members
Thanked: 448 times
GMAT Score:650

by theCodeToGMAT » Wed Dec 18, 2013 11:09 pm
{A} - INCORRECT; "essential" & "key" are redundant
{B} - INCORRECT; "essential" & "key" are redundant
{C} - CORRECT
{D} - INCORRECT; something is essential for survival - For example: Oxygen is essential for human being's survival
{E} - INCORRECT; connector is missing
R A H U L
Top
Join the discussion
Junior | Next Rank: 30 Posts
Posts: 10
Joined: Fri Nov 29, 2013 8:20 pm

by Chanakya1 » Thu Dec 19, 2013 5:32 am
While essential 'for' seems correct here, I don't think there's much wrong with essential 'to' either. Really not sure whether to pick C or D. What's the OA?
Top
Join the discussion
User avatar
Master | Next Rank: 500 Posts
Posts: 359
Joined: Wed Mar 11, 2009 4:37 amFollowed by: 2 members
Location: Kolkata, India
Thanked: 50 times

by Abhishek009 » Thu Dec 19, 2013 10:31 am
+1 for (C)

Plz post the OA as well as OE...
Abhishek
Top
Join the discussion