In that case, you'd better buy loose-leaf ones. The wrong question is not a decoration. You should thicken it first, and then thin it. In short, it is to accumulate more wrong questions and good questions (wonderful answers, etc.). ) and new questions, and then you often review them. If you make mistakes three times in a row (once every once in a while), just tear this page off and you will have a complete grasp of the problem. There is no need to leave it. If you don't repeat it, you will always master it. When you enter the college entrance examination, you won't have any wrong questions (not only a mastery of knowledge, but also confidence, isn't it? )

In short, the wrong questions should have been made long ago. This winter vacation is good.