All-in-one test paper focuses on the foundation. If children with average grades can do all-in-one test papers for sunshine students. Sunshine students and 53-day practice choose which primary school students choose homework, and 53-day practice is better. Because you practice every day for 53 years, it is better to use word of mouth every day. Every day, with high-quality content and quality, perfect and rich tree-like curriculum system and other aspects of teaching, primary school students can choose the old exercise book of "winning the championship lightly and optimizing training", follow the classroom synchronization, lay a solid foundation and improve their ability, and explain without examples. Many primary and secondary school parents will buy, practice basic skills and use holidays to teach themselves.