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
Vote for Target Test Prep, Newsweek Readers’ Choice Awards 2026
NEWSWEEK READERS’ CHOICE 2026

BIG NEWS! We’ve been nominated, and we’d love your vote!

We’ve worked incredibly hard to build TTP into the best test prep experience possible, and it would mean a lot to us to win Newsweek’s 2026 Readers’ Choice Award for Best Test Prep. If TTP has helped you, we’d be incredibly grateful for your vote. You can vote once each day through September 9.

Vote for TTP
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & 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
Live EA class + 6 months of EA OnDemand
  • Expert-led weekly online sessions
  • EA Masterclass access between classes
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

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

MGMAT ques.

Expert replies
by madhur_ahuja » Mon Aug 10, 2009 4:52 am
Geologists once thought that the molten rock known as lava was an underground remnant of Earth's earliest days, sporadically erupting through volcanoes, but they now know that it is continuously created by the heat of the radioactivity deep inside the planet.

was an underground remnant of Earth's earliest days, sporadically erupting
had been an underground remnant of Earth's earliest days and sporadically erupted
was an underground remnant of Earth's earliest days, which sporadically erupted
would be an underground remnant of Earth's earliest days that sporadically erupted
was an underground remnant of Earth's earliest days, having sporadically erupted
Join the discussion
Source: — Sentence Correction |

by ketkoag » Mon Aug 10, 2009 9:07 am
A it is..
erupting....modifies the lava...
Join the discussion

by hariharakarthi » Mon Aug 10, 2009 11:22 am
was an underground remnant of Earth's earliest days, sporadically erupting
A Correct.

had been an underground remnant of Earth's earliest days and sporadically erupted
Simple past is required here.

was an underground remnant of Earth's earliest days, which sporadically erupted
"Which sporadically erupted" incorrectly modifies "Earth's earliest days"

would be an underground remnant of Earth's earliest days that sporadically erupted
Conditional tense not required here. Morever, that sproadically erupted is not essential to the sentence here. Hence, wrong use of essential modifier.

was an underground remnant of Earth's earliest days, having sporadically erupted
Verb modfier "having .. erupted" does not modify the noun/subject or previous clause.

Hence A is correct.

Please correct if I have provided wrong explanation to any of ans choices.
Join the discussion

by riteshbindal » Mon Aug 10, 2009 11:38 am
I may be wrong but thinking of C
Join the discussion

by goelmohit2002 » Mon Aug 10, 2009 1:40 pm
hariharakarthi wrote:was an underground remnant of Earth's earliest days, sporadically erupting
A Correct.

had been an underground remnant of Earth's earliest days and sporadically erupted
Simple past is required here.

was an underground remnant of Earth's earliest days, which sporadically erupted
"Which sporadically erupted" incorrectly modifies "Earth's earliest days"

would be an underground remnant of Earth's earliest days that sporadically erupted
Conditional tense not required here. Morever, that sproadically erupted is not essential to the sentence here. Hence, wrong use of essential modifier.

was an underground remnant of Earth's earliest days, having sporadically erupted
Verb modfier "having .. erupted" does not modify the noun/subject or previous clause.

Hence A is correct.

Please correct if I have provided wrong explanation to any of ans choices.
IMO E is wrong because having says that the eruption already happened....as having + simple past is used to show the relative past.....

Please tell me if I am wrong here....
Join the discussion

by madhur_ahuja » Mon Aug 10, 2009 7:26 pm
OA is A
Join the discussion

• Page 1 of 1