Hi! I'm Colt in New York. I'm glad to help you improve your spoken English. I help online for free, always! I use only ooVoo to teach and help. Please download and make an account and let me know your ooVoo ID. We can then begin! Thanks! :)

I think you should read a lot, this way you'll learn specific word and sentences according to your business sector. Then, try to write some articles and ask for a correction by a native or someone good enough to show you your mistakes. You can do it here on italki for example. Plus, I advise you to use linkedIn to read articles and why not share yours.