Did that last page look blank to you. It was a link to a website. Sometimes your computer blocks the link out and you have to click on the little box with an arrow in the top right of the "blank page" or you have to click on the shield in your address bar to allow the browser to link out. If it didn't link out you can go back and try one of these fixes or click here.
The next page is a game called "Word Invasion." It's a great way to practice parts of speech. There are Slow, Normal, and Fast settings for the invasion. Start Slow and then speed it up. Set a timer and play the game for at least 10 minutes.
Change speeds, change levels... PRACTICE! You should try for at least 85% Accuracy (of course 100% would be best), and you should not let the invasion succeed!