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! Target Test Prep has been nominated, and they’d love your vote!

TTP has worked incredibly hard to build the best test prep experience possible, and winning Newsweek’s 2026 Readers’ Choice Award for Best Test Prep would mean a lot to them. If TTP has helped you, they’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
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
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.

It is possible that Native Americans

Expert replies
by sachin_yadav » Fri Nov 04, 2011 10:07 am
Hi,

I would like to discuss the below question. I am not good enough in tenses. Please help.

It is possible that Native Americans originally have migrated to the Western Hemisphere over a bridge of land that once existed between Siberia and Alaska.

A) have migrated to the Western Hemisphere over a bridge of land that once existed
B) were migrating to the Western Hemisphere over a bridge of land that existed once
C) migrated over a bridge of land to the Western Hemisphere that once existed
D) migrated to the Western Hemisphere over a bridge of land that once existed
E) were migrating to the Western Hemisphere over a bridge of land existing once

Answer is D

Thanks & Regards
Sachin
Join the discussion
Source: — Sentence Correction |

by Tani » Fri Nov 04, 2011 10:18 am
"Have migrated" is present perfect, meaning the action is continuing into the present. It is clear from context that this migration happened many years ago.

The correct form is the simple past "migrated".

Looking at C and D, the difference is the order of the phrases (over a bridge of land) and (to the Western Hemisphere). The problem with C is the proximity of "to the Western Hemisphere" to "that once existed. The order in C means "that once existed" applies to the Western Hemisphere, meaning the hemisphere no longer exists. Incorrect!

The answer is D.
Tani Wolff
Join the discussion

by krishnakumar.ks » Fri Nov 04, 2011 10:23 am
Perfect explanation by Tani Wolff.

D is the correct answer.
Join the discussion

by Tani » Fri Nov 04, 2011 10:24 am
Thanks! :-)
Tani Wolff
Join the discussion

by vaibhavgupta » Fri Nov 04, 2011 10:30 am
sachin_yadav wrote:Hi,

I would like to discuss the below question. I am not good enough in tenses. Please help.

It is possible that Native Americans originally have migrated to the Western Hemisphere over a bridge of land that once existed between Siberia and Alaska.

A) have migrated to the Western Hemisphere over a bridge of land that once existed
B) were migrating to the Western Hemisphere over a bridge of land that existed once
C) migrated over a bridge of land to the Western Hemisphere that once existed
D) migrated to the Western Hemisphere over a bridge of land that once existed
E) were migrating to the Western Hemisphere over a bridge of land existing once

Answer is D

Thanks & Regards
Sachin
D it isss!! :)
If OA is A, IMO B
If OA is B, IMO C
If OA is C, IMO D
If OA is D, IMO E
If OA is E, IMO A

FML!! :/
Join the discussion

by sachin_yadav » Fri Nov 04, 2011 11:26 am
Thanks Tani. What about B and E, "were migrating" ? In my opinion this is past continuous that means action continuing in the past, but context says that the action is completed. Am i correct ?

Regards
Sachin
Tani Wolff - Kaplan wrote:"Have migrated" is present perfect, meaning the action is continuing into the present. It is clear from context that this migration happened many years ago.

The correct form is the simple past "migrated".
Join the discussion

by vaibhavgupta » Fri Nov 04, 2011 11:56 am
sachin_yadav wrote:Thanks Tani. What about B and E, "were migrating" ? In my opinion this is past continuous that means action continuing in the past, but context says that the action is completed. Am i correct ?

Regards
Sachin
Tani Wolff - Kaplan wrote:"Have migrated" is present perfect, meaning the action is continuing into the present. It is clear from context that this migration happened many years ago.

The correct form is the simple past "migrated".
Yes! :)
If OA is A, IMO B
If OA is B, IMO C
If OA is C, IMO D
If OA is D, IMO E
If OA is E, IMO A

FML!! :/
Join the discussion

by sachin_yadav » Fri Nov 04, 2011 2:40 pm
vaibhavgupta wrote:
Yes! :)
Thanks buddy, but i was thinking if i can get some experts advice on this. Tenses just freaks me out. Just want to confirm from an expert. I hope you don't mind.

Thanks
Sachin
Join the discussion

by vaibhavgupta » Fri Nov 04, 2011 3:00 pm
sachin_yadav wrote:
vaibhavgupta wrote:
Yes! :)
Thanks buddy, but i was thinking if i can get some experts advice on this. Tenses just freaks me out. Just want to confirm from an expert. I hope you don't mind.

Thanks
Sachin
I don't mind. better be sure than doubtful! :)
If OA is A, IMO B
If OA is B, IMO C
If OA is C, IMO D
If OA is D, IMO E
If OA is E, IMO A

FML!! :/
Join the discussion

by Jim@Grockit » Fri Nov 04, 2011 3:07 pm
I got a PM about this question.

The thing about past progressive tense ("were migrating") is that it's usually used of ongoing actions in the past that were interrupted, or during which time some other action happened.
We were hiding in the bushes when a dog bit us.
She was sitting in the car while her friend went into the store.


Even the answer to the question What were you doing? I was cleaning this shelf. implies an action interrupted by the questioner.
Join the discussion

by sachin_yadav » Sat Nov 05, 2011 9:09 am
Jim,

Thank you very much for your reply.

Regards
Sachin
Jim@Grockit wrote:I got a PM about this question.

The thing about past progressive tense ("were migrating") is that it's usually used of ongoing actions in the past that were interrupted, or during which time some other action happened.
We were hiding in the bushes when a dog bit us.
She was sitting in the car while her friend went into the store.


Even the answer to the question What were you doing? I was cleaning this shelf. implies an action interrupted by the questioner.
Join the discussion

by vzzai » Sun Nov 13, 2011 7:06 pm
Confused between A and D.
In the OG Preset Perfect is described as an action that occurred at an indefinite time in the past.
In that sense, A is right.
...have migrated to the Western Hemisphere... seems fine to me.
Please help to clarify.
Thank you,
Vj
Join the discussion

by Tani » Sun Nov 13, 2011 7:59 pm
The use of "originally" indicates that the action is complete and not ongoing. "Have migrated" implies that the migration is continuing.
Tani Wolff
Join the discussion

• Page 1 of 1