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Comment on Science Project Challenges
Hi. I too got the answer
In answer choice D, the part
In answer choice D, the part after the comma is still a clause. We have a subject (challenges) and a verb (confronted).
Could you explain in another way why had confronted is in the past perfect and completed in the simple past. Could I reverse it, for exemple "... had completed the project, they confronted many logistical challenges." explaning, after completed, they confronted many logistical challenges.
The sentence structure "By
The sentence structure "By the time X, Y had occurred" tells is that Past Event Y happened BEFORE Past Event X
By the time his guests arrived, Joe had eaten all of the cake.
By the time it stopped raining, Joe had stopped crying.
Dear Brent, how if the answer
Yes, that would be
Yes, that would be technically okay. However, that's a passive sentence, and passive sentences are seldom the best answer choices on the GMAT.
Hi Brent, is there any
Sorry about I don't have a
Sorry about I don't have a similar resource for Reading Comprehension.
That said, I feel that there are many positive aspects I was reviewing and summarizing your notes. That process is one of the best ways to reinforce your learning.
Is "By the time" a
On its own, "by the time" isn
On its own, "by the time" isn't a prepositional phrase, since it isn't modifying any nouns or verbs.
Compare that to the sentence "Joe watered the roses BY the pool."
In this case, "BY the pool" is a prepositional phrase that tells us more about the ROSES. (Which roses? The ones BY the pool.)
Here's another example: Joe completed the work BY Friday.
In this case, "BY Friday" is a prepositional phrase that modifies COMPLETED. (When did Joe complete the work? BY Friday.)
That said, "BY the time the scientists had completed the project" is a dependent clause that provides a timeframe for WHEN the scientists CONFRONTED the challenges
Does that help?