"One lesson and one practice" to strengthen classroom learning effect. It is as difficult as the school exercise book. You can finish the school exercise book before doing it to improve your proficiency.

There are 3-4 test papers in each unit of "Famous School Volume", which is a good combination of one lesson and one practice and famous school volume.

Strengthen mathematical calculation, you can do 3 minutes of calculation problems every day, increase your sense of numbers, and master small skills (clever calculation with your feet).

Reading comprehension recommended "A Book" Recommended reason: the difficulty is not small, and the answer is detailed.