danimmm,
You can definitely improve your verbal score vastly. I agree with marcusking's advice. You can really improve your score by nailing the sentence correction part.
As for the RC, trust me I hated these questions with a passion but they ended up being my favorite part about the verbal. Just tackle it head on. The nice thing about the RC questions is that the answers are always right in front of you. Be enthusiastic about them, and more importantly confident that you can ace them.
I used the strategies in the McGraw Hill's Gmat verbal guide. See what works best for you. The most important thing is to systematically understand what the passage is trying to convey, and what each paragraph adds to the meaning. Do as many practice passages as you possibly can, and have faith in yourself.
Good luck buddy,
A