Hi Instructors,

I have a question regarding the usage of "Ving" as noun modifier. If we have "Noun1 of Noun2 + Ving", does "Ving" modify Noun1 or Noun2, or either one of them? Is there any rules? Thank you!

Hi Ron, I remember you said that in "more...than..." comparison, we need to find the same grammatical structure on both sides of the comparison. According to your post https://www.manhattanprep.com/gmat/forums/laos-has-a-land-area-t5749-90.html , Laos has more land area tha...

Hi Ron, I have a parallelism question regarding the correct answer: because moisture exhaled by tourists had raised the humidity within them to such levels that salt from the stone was crystallizing and fungus was growing on the walls. The AND here connects salt was crystallizing and fungus was grow...

Ron,

I have once read in the forum that "while" should come with a complete sentence to express contrast. But in this question, "while + doing" can also express contrast. Do you think the older rule shouldn't be held? Thanks in advance!

Ron,

Do you think "when" is an appropriate subordinator used in choice D and E? Thanks.