1. Choose The Most Concise Answer
Find the choice that provides all the necessary information for the sentence to make grammatical sense and nothing extra.
2. Read the Paragraph First
Read the entire paragraph that contains the sentence you will be revising before looking at the answer choices. This will give you a better context for your answer choices.
3. No Change Answers
25-30% of the time “no change” is the correct answer choice. So, if you have gone through all the answer choices and feel that “no change” is the best optio, then choose it and don’t second guess yourself.