Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. 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.

1000 SC

Expert replies
by hey_thr67 » Thu May 10, 2012 9:08 am
A huge flying reptile that died out with the dinosaurs some 65 million years ago, the Quetzalcoatlus had a wingspan of 36 feet, believed to be the largest flying creature the world has ever seen.

(A) believed to be
(B) and that is believed to be
(C) and it is believed to have been
(D) which was, it is believed,
(E) which is believed to be
Join the discussion
Source: — Sentence Correction |

by Birottam Dutta » Thu May 10, 2012 10:11 am
IMO C!
Join the discussion

by Spidy001 » Thu May 10, 2012 11:47 am
In A, believed to be is modifying feet not the Quetzalcoatlus

In B , that is not clear what it refers to

in D and E, which is referring to feet/wing but not to Quetzalcoatlus

My Answer is C. (here it clear refers to Quetzalcoatlus )
Join the discussion

by Bill@VeritasPrep » Thu May 10, 2012 9:15 pm
From a thread on this question the other day:
D and E use a relative clause (starting with "which"), but the clause appears to modify "wingspan." It's not the wingspan that is believed to be the largest flying creature.

A creates a run-on sentence; we need a subject to go with the verb "believed"

B uses a conjunction to link the clauses, but we still don't have a subject for "believed"

C successfully creates two clauses: "the Quezalcoatlus had a wingspan..., and it is believed..."
I love dinosaur questions :D
Join Veritas Prep’s 2010 Instructor of the Year, Matt Douglas for GMATT Mondays

Visit the Veritas Prep Blog

Try the FREE Veritas Prep Practice Test
Join the discussion

by abhi.iitb » Fri May 11, 2012 7:05 am
Hi Bill,
I have one doubt in "B" option. Can't we consider "that" as a subject of the second clause similar as we are taking "it" as a subject in "C" option. please elaborate on this.

Thanks in advance.

Abhishek

Bill@VeritasPrep wrote:From a thread on this question the other day:
D and E use a relative clause (starting with "which"), but the clause appears to modify "wingspan." It's not the wingspan that is believed to be the largest flying creature.

A creates a run-on sentence; we need a subject to go with the verb "believed"

B uses a conjunction to link the clauses, but we still don't have a subject for "believed"

C successfully creates two clauses: "the Quezalcoatlus had a wingspan..., and it is believed..."
I love dinosaur questions :D
Join the discussion

by Bill@VeritasPrep » Fri May 11, 2012 7:37 am
I suppose you could, but "that" is nearly always used as a conjunction on the GMAT.

If you use "that" as a subject for the second clause, you run into a reference error. "That" could refer to "Quetzalcoatlus" or "wingspan."
Join Veritas Prep’s 2010 Instructor of the Year, Matt Douglas for GMATT Mondays

Visit the Veritas Prep Blog

Try the FREE Veritas Prep Practice Test
Join the discussion