Congratters most fearfully! I bet they are pickiest on the writing test because that's what people are usually best at in their second languages. I know that's the case for me--I can usually figure out a bit of written French, especially if I can look up the hard words, but let somebody talk to me and I'm pretty much lost after "Bonjour." And speaking, well, I can string nouns and verbs together at random and hope the person can figure it out.