Étudiez le vocabulaire !  You have worked with a lot of vocabulary this year--both new and review.  Spend some time studying the vocabulary from EACH unit with which we have worked.  You have 11 days between the last day of school and the final exam.  If you spend 20-30 minutes during each of those days practicing using one or two lists of vocabulary, you'll be in very good shape the day of the test.