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
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.

130-point 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.

73Leaching

Expert replies
Post new topic Locked
Previous Topic Next Topic
Legendary Member
Posts: 527
Joined: Thu May 01, 2008 12:06 am
Thanked: 7 times
by real2008 » Fri Jul 03, 2009 3:15 am
Leaching, the recovery of copper from the drainage water of mines, as a method of the extraction of minerals, it was well established as early as the eighteenth century, but until about 25 years ago miners did not realize that bacteria taken an active part in the process.
(A) as a method of the extraction of minerals, it was well established
(B) as a method of the extraction of minerals well established
(C) was a well-established method of mineral extraction
(D) was a well-established method of extracting mineral that was
(E) had been a method of mineral extraction, well established


Why not E?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Sentence Correction |
Senior | Next Rank: 100 Posts
Posts: 72
Joined: Tue Jun 09, 2009 4:42 pm
Thanked: 3 times

Re: 73Leaching

by mittalashwani13 » Fri Jul 03, 2009 6:16 am
real2008 wrote:Leaching, the recovery of copper from the drainage water of mines, as a method of the extraction of minerals, it was well established as early as the eighteenth century, but until about 25 years ago miners did not realize that bacteria taken an active part in the process.
(A) as a method of the extraction of minerals, it was well established
(B) as a method of the extraction of minerals well established
(C) was a well-established method of mineral extraction
(D) was a well-established method of extracting mineral that was
(E) had been a method of mineral extraction, well established


Why not E?
Because sentence needs a simple past tense instead of the past perfect ...
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 431
Joined: Sat Jan 10, 2009 9:32 amFollowed by: 1 member
Thanked: 16 times

Re: 73Leaching

by kanha81 » Sat Jul 04, 2009 8:50 pm
real2008 wrote:Leaching, the recovery of copper from the drainage water of mines, as a method of the extraction of minerals, it was well established as early as the eighteenth century, but until about 25 years ago miners did not realize that bacteria taken an active part in the process.
(A) as a method of the extraction of minerals, it was well established
(B) as a method of the extraction of minerals well established
(C) was a well-established method of mineral extraction
(D) was a well-established method of extracting mineral that was
(E) had been a method of mineral extraction, well established


Why not E?
Real2008,
You're posting good questions, but you're not underlining the part of question that requires our introspection. Kindly, please for the sake of fellow GMATTERs' underline the question stem.

Best regards,
Kanha81
Want to Beat GMAT.
Always do what you're afraid to do. Whoooop GMAT
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 435
Joined: Sat Sep 27, 2008 2:02 pmFollowed by: 1 member
Location: San Jose, CA
Thanked: 43 times
GMAT Score:720

by dumb.doofus » Sat Jul 04, 2009 9:20 pm
IMO C

a] Unnecessary use of "it". Awkward structure.

b] Again quite awkward structure.. also needs to use simple past - "was established"

c] Perfect

d] Redundant "that was"

e] Unnecessary past perfect.
One love, one blood, one life. You got to do what you should.
https://dreambigdreamhigh.blocked/
https://gmattoughies.blocked/
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 527
Joined: Thu May 01, 2008 12:06 am
Thanked: 7 times

Re: 73Leaching

by real2008 » Sat Jul 04, 2009 11:23 pm
kanha81 wrote:
real2008 wrote:Leaching, the recovery of copper from the drainage water of mines, as a method of the extraction of minerals, it was well established as early as the eighteenth century, but until about 25 years ago miners did not realize that bacteria taken an active part in the process.
(A) as a method of the extraction of minerals, it was well established
(B) as a method of the extraction of minerals well established
(C) was a well-established method of mineral extraction
(D) was a well-established method of extracting mineral that was
(E) had been a method of mineral extraction, well established


Why not E?
Real2008,
You're posting good questions, but you're not underlining the part of question that requires our introspection. Kindly, please for the sake of fellow GMATTERs' underline the question stem.

Best regards,
Kanha81
I will do next time...sorry for inconvenience...
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 752
Joined: Sun May 17, 2009 11:04 pm
Location: Tokyo
Thanked: 81 times
GMAT Score:680

by tohellandback » Sun Jul 05, 2009 3:46 am
IMO C.
Concise
The powers of two are bloody impolite!!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 527
Joined: Thu May 01, 2008 12:06 am
Thanked: 7 times

by real2008 » Sun Jul 05, 2009 7:31 am
oa is C.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 1799
Joined: Wed Dec 24, 2008 3:03 amFollowed by: 2 members
Thanked: 36 times

by goelmohit2002 » Mon Jul 06, 2009 5:10 am
dumb.doofus wrote:IMO C
a] Unnecessary use of "it". Awkward structure.
Can someone please tell why "it" is redundant in A ?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 253
Joined: Fri Dec 26, 2008 8:39 pmFollowed by: 1 member
Thanked: 8 times

Re: 73Leaching

by BlindVision » Tue Jul 07, 2009 2:14 am
real2008 wrote:Leaching, the recovery of copper from the drainage water of mines, as a method of the extraction of minerals, it was well established as early as the eighteenth century, but until about 25 years ago miners did not realize that bacteria taken an active part in the process.
(A) as a method of the extraction of minerals, it was well established
(B) as a method of the extraction of minerals well established
(C) was a well-established method of mineral extraction
(D) was a well-established method of extracting mineral that was
(E) had been a method of mineral extraction, well established


Why not E?
it should be omitted because it is incorrectly referring to minerals.

Helpful ways to read it:

Leaching...it was well established as early as the eighteenth century...

OR

Leaching...was well established as early as the eighteenth century...

Hope that Helps!
Life is a Test
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Locked
• Page 1 of 1