The commonly confused words test
English Genius
You scored 100% Beginner, 100% Intermediate, 87% Advanced, and 87% Expert!
I took this test here: http://www.okcupid.com/tests/the-commonly-confused-words-test
Strangely I only got one wrong but I got docked quite a bit for it. I confused whoever/whomever. I've always had a problem with who/whom I don't know why it's not all that difficult to keep straight.