SC - Verb tense

Expert replies

karthikpandian19: Legendary Member; Posts: 1665; Joined: Thu Nov 03, 2011 7:04 pmFollowed by: 70 members; Thanked: 165 times

by karthikpandian19 » Tue May 08, 2012 12:17 am

1. A “calendar stick” carved centuries ago by the Winnebago tribe may provide the first evidence that the North American Indians have developed advanced full-year calendars basing them on systematic astronomical observation.
(A) that the North American Indians have developed advanced full-year calendars basing them
(B) of the North American Indians who have developed advanced full-year calendars and based them
(C) of the development of advanced full-year calendars by North American Indians, basing them
(D) of the North American Indians and their development of advanced full-year calendars based
(E) that the North American Indians developed advanced full-year calendars based

Source: Beat The GMAT — Sentence Correction | Tue May 08, 2012 12:17 am

mathbyvemuri: Master | Next Rank: 500 Posts; Posts: 142; Joined: Thu Apr 26, 2012 3:24 am; Location: India; Thanked: 28 times

by mathbyvemuri » Tue May 08, 2012 12:54 am

A is wrong as the present-perfect tense 'have developed' is used to represent an issue related to very past.
B and D are wrong as they wrongly represent the "calender stick" as the evidence of North American Indians instead of that of North American Indians' work
There is a tie between C and E.
I prefer "E" as there is an ambiguity about 'them' used in option "C"

RaviSankar Vemuri

Join my Google Group on Math:
https://groups.google.com/group/mathbyvemuri
My Blog on Math:
https://mathbyvemuri.blocked/
Some concepts for GMAT:
https://mathbyvemuri.blogspot.in/2012/05 ... -data.html
https://mathbyvemuri.blogspot.in/2012/05 ... dates.html
https://mathbyvemuri.blogspot.in/2012/05 ... es-of.html

Bill@VeritasPrep: GMAT Instructor; Posts: 1248; Joined: Thu Mar 29, 2012 2:57 pmFollowed by: 192 members; Location: Everywhere; Thanked: 503 times; GMAT Score:780

by Bill@VeritasPrep » Tue May 08, 2012 6:39 am

mathbyvemuri wrote: I prefer "E" as there is an ambiguity about 'them' used in option "C"

C actually has a misplaced modifier. The participial phrase at the end ("basing them...") can modify the noun before the comma ("calendars") or the subject of the clause ("calendar stick"), neither of which makes sense.

Join Veritas Prep’s 2010 Instructor of the Year, Matt Douglas for GMATT Mondays

Visit the Veritas Prep Blog

Try the FREE Veritas Prep Practice Test

mathbyvemuri: Master | Next Rank: 500 Posts; Posts: 142; Joined: Thu Apr 26, 2012 3:24 am; Location: India; Thanked: 28 times

by mathbyvemuri » Tue May 08, 2012 9:19 pm

Bill@VeritasPrep wrote: C actually has a misplaced modifier. The participial phrase at the end ("basing them...") can modify the noun before the comma ("calendars") or the subject of the clause ("calendar stick"), neither of which makes sense.

Bill, it's a good explanation

jordan23: Senior | Next Rank: 100 Posts; Posts: 81; Joined: Thu Oct 08, 2009 1:02 pm; Thanked: 4 times; GMAT Score:690

by jordan23 » Wed May 09, 2012 8:17 am

IMO E

karthikpandian19: Legendary Member; Posts: 1665; Joined: Thu Nov 03, 2011 7:04 pmFollowed by: 70 members; Thanked: 165 times

by karthikpandian19 » Wed May 09, 2012 9:14 pm

E is OA

Featured schoolRound 2 closes Jan 7, 2027 66 days left

Chicago Booth

Since 1982, 10 Booth faculty members have received the Nobel Prize in Economic Sciences, more than any other business school.

#3
U.S. News rank: $175,000
Median base salary: 670
Average GMAT Focus: 635
Students in the class

Apply to Booth Visit chicagobooth.edu See the full profile

Photo: Warren LeMay, CC BY-SA 2.0

GMAT Course Reviews

563 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (563 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review