Oh man, I remember this passing around my Facebook a few years back. Didn’t realize there were tests for other languages!

That is significantly high than I’d expected! A decent amount of my answers were educated guesses. I’ll probably go back and look up the base words and answers I didn’t know to add to my vocabulary! 
I think my biggest problem with these quizzes in general (even from what I remember when I had my family and friends take the English one) is the multiple choice form. Unfortunately, a lot of the questions’ answer choices make guessing the correct answer easier even if you don’t actually know what the word about which it is asking you means. Similar to how you can find synonyms and antonyms using the kanji (and diagnosing potential kanji by use of phonetic components), the more difficult English words can be analyzed the same way due to high Latin influence in “difficult” English vocabulary.
Same score as my first time on the English. I do wonder if this is 100%.
