Wiley's Gmat Critical Reasoning Grail 2018 by Aristotle Prep English | 2018 | ISBN: 8126569751 | 250 pages | PDF | 1.23 MB Critical Reasoning (CR), even though part of the verbal section, does not really test you on your grasp of the English language. As the name suggests, this section is actually a test of your reasoning skills. The only verbal knowledge you need is that you have to be able to understand the meaning of the arguments and answer choices given to you. The critical part of Critical Reasoning is that you have to read the question stem and the answer choices very carefully. If you miss even a single word such as some, you could end up with an incorrect answer.