As a matter of fact, I personally don't recommend that you do a mock exam. The best quality is the real questions of the college entrance examination over the years. Many simulation papers don't know which so-called expert gave the questions, but the real questions of the college entrance examination are carefully designed and compiled by the most authoritative experts. Doing more real questions can better grasp the test sites of the college entrance examination and the examination methods of various knowledge points, so I suggest you do real questions. That's how I got here.