Second: Be careful when doing the questions and make the meaning clear. I haven't written for a long time, and finally realized that I misunderstood the meaning.
Third: I will do the exam, simple. It's a little difficult to finish it for the first time, and it may take a lot of calculation time, so I put it behind, so as not to be short of time and waste it in places that shouldn't be wasted.
Fourth: The most important thing is to have a good habit. No matter how confident you are in yourself, you should form the good habit of looking back and checking.
Study hard. You can ask me again if you don't understand. I wish you success in your studies. ...