Bought "3-year college entrance examination 2-year simulation". The topic here is good. Mathematics is a good subject. Just like the second round of review in senior three. Then the topic is good. I suggest you buy it. Just buy the kind with blue words and white background, the kind with big books and thick books. On the right is science and math. That kind of research was done about 100 days before the college entrance examination. If you are a sophomore, you can do that kind of ordinary big book and thick book. I wish I could solve every problem in it. )

But I don't think you, a sophomore, need to do it in such a hurry. Your homework is very good, almost enough. I think it will be better to wait until the summer vacation of your second and third year of high school. It is better to buy some exercises that are synchronized with the class textbooks now.

Hey, kid, come on.