If you (hit the books) before an exam, you (get) better results.
If you hit the books before an exam, you will get better results.
If you (skip) lessons too often, you (fail) your exams.
If you skip lessons too often, you will fail your exams.
When students (wear) a uniform, they (look) more disciplined.
When students wear a uniform, they look more disciplined.
If someone (leave) school at sixteen, they (have) to find a job earlier.
If someone leaves school at sixteen, they have to find a job earlier.
If you (do) a gap year, you (gain) valuable life experience.
If you do a gap year, you will gain valuable life experience.
