[讨论]

ptr07

There are many differences between GMATPrep SC and OG SC?
Does it mean that mba.com are chaning the SC  style?

For example:
1. Being may not be wrong all the time
2. There be sentence prevelent in GMATPrep
3. With sentences are popular in GMATPrep, but not popular at all in OG
4. Having been sometimes are correct in GMATPrep

ptr07

Please delete this one, I made a mistake in posting.