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.

1000SC Question No 213

Expert replies
Post new topic Locked
Subscribe topic
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 90
Joined: Sat Mar 27, 2010 10:41 pm
by samyak » Sat Apr 24, 2010 12:18 pm
213. Clark and Florence Wallace, a husband-and-wife medical team, worked steadily and efficiently through the night, but sipping their coffee the next morning, she noticed that he seemed disoriented.
(A) sipping their coffee the next morning, she noticed that he seemed disoriented
(B) sipping their coffee the next morning, he seemed to be disoriented, she noticed
(C) as they sipped their coffee the next morning, she noticed that he seemed disoriented
(D) as they were sipping their coffee the next morning, he seemed, she noticed, disoriented
(E) he seemed disoriented, she noticed, sipping their coffee the next morning

Please explain why the correct option is C. I opted for A.
Top
Join the discussion
Source: — Sentence Correction |
Newbie | Next Rank: 10 Posts
Posts: 5
Joined: Wed Feb 10, 2010 5:16 am
Thanked: 1 times

by jumpin » Sat Apr 24, 2010 12:50 pm
imo

Clark and Florence Wallace, a husband-and-wife medical team, worked steadily and efficiently through the night, but as they sipped their coffee the next morning, she noticed that he seemed disoriented.

this is how the corrected sentence reads, you can notice here it is clear that when the process of sipping was happening Florence was able to notice the disorientation, sipping was responsible for her noticing.. so <as he/they sipped.. she noticed>

Contrast this with
<sipping> which doesnt make it clear as to how she was able to notice

Thus choice A fails in clarity and dings out. hope this helps
Top
Join the discussion
Master | Next Rank: 500 Posts
Posts: 232
Joined: Sun Feb 28, 2010 10:47 pm
Thanked: 10 times

by Phirozz » Sat Apr 24, 2010 2:30 pm
option A uses wrong modifier.

sipping their coffee the next morning, she noticed that he seemed disoriented... here shipping modifies she
Top
Join the discussion
User avatar
GMAT Instructor
Posts: 509
Joined: Wed Apr 21, 2010 1:08 pmFollowed by: 85 members
Location: Irvine, CA
Thanked: 199 times
GMAT Score:750

by tpr-becky » Sat Apr 24, 2010 3:54 pm
you can't use the plural pronoun their coffee unless maybe they are sharing a cup but that isn't made clear at all - so she needs sip her coffee or they need to sip their coffee.
Becky
Master GMAT Instructor
The Princeton Review
Irvine, CA
Top
Join the discussion
Legendary Member
Posts: 537
Joined: Fri Jan 22, 2010 10:06 pmFollowed by: 1 member
Thanked: 14 times

by frank1 » Sat Apr 24, 2010 8:46 pm
I opted for C as well
but reading explanation # 2
i wonder what would have been case if there was a option like

as they were sipping their coffee the next morning, she noticed that he seemed disoriented.

seems still correct....
One reason i opted for C was because of tense as well....which has not been mentioned so bit confused...
Top
Join the discussion
Junior | Next Rank: 30 Posts
Posts: 20
Joined: Fri Apr 05, 2013 9:44 pm

by pramendrapandeya » Fri May 16, 2014 11:09 pm
Non underline part is in past indefinite,"Clark and Florence Wallace, a husband-and-wife medical team, worked steadily and efficiently through the night"

So sipping is not correct as it denotes something which still continue so A,B, and E out

D is wordy, too many commas so C is best :)

Hope it will help :)
Top
Join the discussion