One of the best ways to prepare for the TOEFL is to take regular practice tests and quizzes. Taking TOEFL practice tests lets you estimate how well you’ll do on the real test, shows you the areas you need to focus your studies on, and helps you become more familiar and comfortable with the exam.
There are many practice TOEFL tests available, but not all of them are created equal. Taking a poorly written practice test can give you a false idea of what the real TOEFL will be like and cause you to study the wrong things.