Last visit was: 18 Nov 2025, 20:21 It is currently 18 Nov 2025, 20:21
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Close
Request Expert Reply
Confirm Cancel
605-655 Level|   Grammatical/Rhetorical Construction|   Parallelism|   Subject Verb Agreement|                                 
User avatar
GmatKnightTutor
User avatar
Major Poster
Joined: 31 Jan 2020
Last visit: 01 Nov 2025
Posts: 5,228
Own Kudos:
Given Kudos: 18
Posts: 5,228
Kudos: 1,568
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
GMATNinja
User avatar
GMAT Club Verbal Expert
Joined: 13 Aug 2009
Last visit: 18 Nov 2025
Posts: 7,445
Own Kudos:
Given Kudos: 2,060
Status: GMAT/GRE/LSAT tutors
Location: United States (CO)
GMAT 1: 780 Q51 V46
GMAT 2: 800 Q51 V51
GRE 1: Q170 V170
GRE 2: Q170 V170
Products:
Expert
Expert reply
GMAT 2: 800 Q51 V51
GRE 1: Q170 V170
GRE 2: Q170 V170
Posts: 7,445
Kudos: 69,779
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
DmitryFarber
User avatar
Manhattan Prep Instructor
Joined: 22 Mar 2011
Last visit: 08 Nov 2025
Posts: 3,020
Own Kudos:
8,563
 [2]
Given Kudos: 57
Expert
Expert reply
GMAT Focus 1: 745 Q86 V90 DI85
Posts: 3,020
Kudos: 8,563
 [2]
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I'll copy my response to the same question from the MPrep forums:

There aren't a lot of rules about what we can't omit, partly because that would imply that we always use a certain word, such as "that," to create modifiers. It's true that if we said "The first trenches were cut," then "were" would be the main verb. Since we want that part to be a modifier, we'd need to say "The first trenches THAT were cut."

However, it is quite common to use participles (past tense forms of verbs) to create modifiers. In this case, we don't need THAT to introduce them:

The plan proposed by the mayor was surprising.
Artifacts found at the site include arrow heads and carvings.

Notice that in both the cases above, the first "verb" we see is really just a modifier. "Proposed by the mayor" modifies "plan" and "found at the site" modifies "artifacts. Similarly, in the original sentence, "cut into a site" modifies "trenches." We COULD choose to introduce any of these modifiers with "that were/was," but we don't have to, and normally the GMAT won't.
   1   2   3   4 
Moderators:
GMAT Club Verbal Expert
7445 posts
GMAT Club Verbal Expert
234 posts
188 posts