Test your knowledge
Quiz these words
Track your Progress. Register for Free
Register for Free to Track Progress
Share it with your friends
Download the free Flash Player now!
Get unlimited Watch, Learn and Speak access to our online library
Get unlimited access to Premium+ content from leading publishers
Embedded code copied to your clipboard
I can't believe that there are real slavery!
Kevin Bales' presentation is very clearly structured. Even though it is long it is interesting, due to his great skill of catching the audience's attention using various techniques like playing a video clip or using lots of emphasis and intonation. I think his presentation is excellent.