Turn in Friday of 3rd week. Use any sources. You'll receive a grade, but there is a catch. Ask about it. Questions from this Pre-test appear on every exam as do questions from this you now hold.
Life is like that.
Would that it were not so. If you miss an exam, for you the final is no longer optional. The exams will be given at any time after we cover the required material. All exams are comprehensive. All will feature questions from the pre-test .