Help with a tutorial that not working please

im trying to get this to work the tut is here

http://www.flashperfection.com/tutorials/Fill-in-the-Blanks-Quiz-23872.html

i did everything right i think and every time i plug in the answer and hit submit it come up “wrong” no matter what i do. i just need help to get it you recognize when the right answer is submitted. i dont know whats wrong. any help would be awesome.