Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to revise for an exam while sick [title] Incorporate writing into your revision. [step] You have limited waking time when you're sick, so use the most effective and efficient revision techniques to maximize the use of your time and boost your chances of success. Writing is a wise use of your time.

Ending1: If you rewrite key notes and concepts in your own words, it is more effective than simply reading them or saying them aloud. [substeps] It's best to do so with a pen or pencil. Ending2: Additionally, writing refreshes your brain and helps you become aware of important information. Consider trying free writing online, crafting a list of several writing topics to choose from before you test on your own, or even enrolled in a thematically-sound course. Ending3: Is it your only time? Write as much as you can. Visit a nature preserve or park with plenty of good scenery. Ending4: It will reinforce your thesis and help your revision process stay fresh for you. [substeps] Choosing a writing style that works for you will increase your chances of success.

Answer format: ending1/ending2/ending3/ending4