Your idea is very good. Sophomore students will have no problem passing CET-4. If your grammar is solid, it is only high school grammar. Did you mention four hearing difficulties? The number of words has also increased. I'm just the coach's classmate. Memorize the four core words of the network in the future, and then do the real questions for ten years. Bookstores near the university sell them, but they are not registered online. You can easily find them online. I am also a student with a relatively large test report and a relatively high level of Internet.