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 22
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 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
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
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

SC - 1000 - #531

Expert replies
Post new topic Locked
Subscribe topic
Previous Topic Next Topic
User avatar
Master | Next Rank: 500 Posts
Posts: 400
Joined: Sat Mar 10, 2007 4:04 amFollowed by: 1 member
Thanked: 1 times
by f2001290 » Thu May 31, 2007 10:54 am
New techniques in thermal-scanning photography, a process that records radiation from surface areas, makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before.
(A) makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before
(B) make it possible to study, in greater detail, the effects of calefaction, or warming, of a river than ever before
(C) have made it possible to study in greater detail than ever before the effects of calefaction, or warming, of a river
(D) make possible the study of the effects of calefaction, or warming, of a river in greater detail than it ever was before
(E) has made it more possible than ever before to study in greater detail the effects of calefaction, or warming, of a river

OA after few explanations
Top
Join the discussion
Source: — Sentence Correction |
User avatar
Community Manager
Posts: 789
Joined: Sun Jan 28, 2007 3:51 pmFollowed by: 1 member
Location: Silicon valley, California
Thanked: 30 times

Re: SC - 1000 - #531

by jayhawk2001 » Thu May 31, 2007 12:11 pm
f2001290 wrote:New techniques in thermal-scanning photography, a process that records radiation from surface areas, makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before.
(A) makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before
(B) make it possible to study, in greater detail, the effects of calefaction, or warming, of a river than ever before
(C) have made it possible to study in greater detail than ever before the effects of calefaction, or warming, of a river
(D) make possible the study of the effects of calefaction, or warming, of a river in greater detail than it ever was before
(E) has made it more possible than ever before to study in greater detail the effects of calefaction, or warming, of a river

OA after few explanations
"techniques" plural requires plural verb. A and E are out.

D has "make possible" which is awkward

In B, "greater ... than" is not linked correctly

Vote for C
Top
Join the discussion
Senior | Next Rank: 100 Posts
Posts: 55
Joined: Sun Apr 06, 2008 5:04 pm

by sampleresume » Sun Apr 13, 2008 5:19 pm
I chose B. Now I know why I was wrong. thanks
Top
Join the discussion
Newbie | Next Rank: 10 Posts
Posts: 2
Joined: Mon Apr 14, 2008 9:19 am

by suyashjhawar » Mon Apr 14, 2008 9:35 am
One more C.
Top
Join the discussion
User avatar
Legendary Member
Posts: 2134
Joined: Mon Oct 20, 2008 11:26 pmFollowed by: 25 members
Thanked: 237 times
GMAT Score:730

by logitech » Sat Jan 17, 2009 9:14 pm
I know that GREATER THAN is used incorrectly in option B, but what do you we need HAVE MADE in option C ?
LGTCH
---------------------
"DON'T LET ANYONE STEAL YOUR DREAM!"
Top
Join the discussion
Senior | Next Rank: 100 Posts
Posts: 67
Joined: Sat Feb 16, 2008 8:07 pm
Location: Philippines
Thanked: 3 times

by fighting_cax » Mon Jun 08, 2009 5:27 am
If we get down to the essence of the sentence, we can see that:

because of the new techniques in thermal-scanning photography --> possible to study the effects of calefaction (in greater detail than ever before)

Because we know that this technique (that was discovered in the past) has made it possible for further study to take place (presently), we use the present perfect tense.

Present perfect = have/has + past participle

Examples:
We HAVE LIVED in a little hut for three days.
Our country HAS ENFORCED strict immigration laws for thirty years.
They HAVE KNOWN each other for the longest time.

Immediately, we are down to 2 options that use the present perfect tense: option C and option E.

And because the subject in this sentence is plural --> NEW TECHNIQUES, our verb should be plural --> HAVE (instead of HAS).

Therefore, the answer is option C.
Top
Join the discussion
Legendary Member
Posts: 1169
Joined: Sun Jul 06, 2008 2:34 amFollowed by: 1 member
Thanked: 25 times

by aj5105 » Mon Jun 08, 2009 6:19 am
Picked (C)
Top
Join the discussion