Take a few mixed quizzes before you take a mock test. This can help curb your anxiety, help you plan timing strategy, and give you a good estimate of your verbal ability. The video below shows how to create mixed quizzes in Sentence Correction and Critical Reasoning.
NOTE: You can access RC quizzes also.Watch the video
Note, if select Easy, Medium, and Difficult questions if your verbal score is below V30 and just medium and difficult if your Verbal score is higher than V30. This will ensure that you get the most appropriate practice.