Once you have read everything and are ready to write down your answers follow these tips to get exceptionally good marks:
Always write your answers in the Intro, body, and conclusion format.
Attempt all questions and allot enough time to each and every question.
Drawing diagrams wherever required will get you extra points. Flow charts also help score good marks
Highlight the main points and words in your answer by underlining the important phrase. Make sure your copy is neat and clean.
Proper sequencing is a must. The style of writing is vital. For example, writing an answer in points is better than in a paragraph.
These tips will guide you in your examinations.