pawanCEO
In almost all GMAT OG SC Questions, there are more than one errors.
Is it same for high difficulty level questions too ? (700+ level)
When I took GMAT a few years back, I remember thinking exactly this during the test - the SC questions are harder than OG SC questions because there is a single decision point between two possible choices. At that time, it seemed like both could work since I wasn't aware of the GMAT nuances. And yes, my score indicates that I was getting questions from the 750+ spectrum.
So I would suggest you to pay heed to the common errors, correct grammatical usage and most importantly, accuracy in meaning.