> The test also requires making a clear choice between British and American spelling and vocabulary. That "can trip up people whose English comes from various sources" — say, a third from British textbooks and two-thirds from American movies, Repečkaitė said.

As someone who had trouble learning English in class and ended up self-teaching using the Internet and reading English literature, I would have no hope of passing that test. Additionally I wouldn't be able to explain English grammar for the life of me.

However being multi-lingual and learning from multiple sources appears to do wonders for one's vocabulary - in pure vocabulary tests I tend to outscore native speakers.