GMATPrep SC question - "major economic shifts..."

[1uponGMAT]

I am not sure why choice C is incorrect, and A is correct in this SC problem - please advise!



[/img]

[niksworth]

As far as idioms are concerned, both the idiom forms are acceptable.

Form 1- So X as to (be) Y
Form 2- So X that Y

The question uses form 1 in choice A to frame the correct sentence.

The problem in C is - unable to be distinguished - the use of passive form makes it awkward, wordy and difficult to read.

Note that if we had an answer choice like so gradual that they are indistinguishable (Idiom Form 2) then both this as well as A would have been perfectly valid choices. Luckily for us, this choice is absent.[/u]

[1uponGMAT]

Thanks, I think I have to focus on memorizing some of the more common idioms - MGMAT has a decent list, if I remember their books correctly.

[uwhusky]

This is actually a GMAT-esque question rephrased.

The explanation given in OG 11 is that the phrase must be introduced by preposition, not a participle.

So always choose "after", not "following".

[niksworth]

This is actually a GMAT-esque question rephrased.

The explanation given in OG 11 is that the phrase must be introduced by preposition, not a participle.

So always choose "after", not "following".

Couldn't get you. Have you posted in the right thread?

[uwhusky]

Oops, I thought I deleted this incorrectly placed response!