GMAT Prep II: Unlike crested wheatgrass

[junl961]

Nice explanation, FanPurewal! I like your username too.

I still don't understand, Ron

Native north american ... root system, allowing..

That means the native north american allowing for greater enrichment.. that doesn't sound make sense.

Can you be so kind and give more detail explanation, that the most updated observation with - comma V-ing rules, that subject needs to make sense with the V-ing

Is it still a definite rule, or more than one exceptional case have been identified to prove it invalid.

Thank you

[RonPurewal]

the whole point of comma __ing is that the subject DOESN'T DIRECTLY PERFORM the action of the "__ing". (if the subject directly performed that action, you'd just write a normal subject and a normal verb, and there'd be no need for anything more complicated.)

like this:
I dropped the bags onto the floor, scaring the dogs.

—> what scared the dogs?
...my ACTION of DROPPING THE BAGS did.

—> did I DIRECTLY scare the dogs?
...no.

—> am i the person/thing most directly responsible for scaring the dogs? (in other words, if you had to "blame" exactly one noun for scaring the dogs, would i be that noun?)
...yes.

this sentence has EXACTLY the same relationships.