You know, you can print one off. I know this one person that went to the "score practice test" and clicked on every question until they got the right answer (through trial and error). After doing this for every question (takes about 5-10 mins), they printed the page and copy & pasted the html to word so it could be saved to his/her computer. Total time ~10mins. Not that I did this or anything, but this is an easy way to get an answer key if you really want one.