I've been thinking about sentence structure lately, and came across this tough quiz from Academic English Cafe. Writer Beware! This quiz is not for WEENIES. You have to answer a question about simple, compound, complex, or compound-complex sentences, and what makes it interesting (but not any easier) is that every sentence has to do with Harry Potter.
Confession time: I got THREE wrong. Yikes. Time to go back to school.
Try the QUIZ HERE.