Please choose the correct ending to complete the given sentence: Youth: [header] How to have a great time in middle school [title] Be sure to stay on top of your courses. [step] Do your homework, study for tests, etc. The last thing you want to do is fail a class.

Ending1: Keep all your grades up, if you don't succeed by the end of 8th grade you're going to end up getting a stomach burn or having no credit at all, which can really make you feel inadequate, etc. Stay organized with all your homework, your locker, and your schedule. Ending2: It can make middle school ten times more stressful. [title] Stay on your teacher's " good side. Ending3: Whether it's a paper that tests you on calculus, you gotta know it well. Make sure you understand the material well enough. Ending4: If you miss a class, your grade is generally going to be lower. Try to do your best on standardized tests and give up on tests if you missed them.

Answer format: ending1/ending2/ending3/ending4