The most important thing of zero foundation is to build confidence. Don't think that you can improve obviously after studying for a few days. Zero-based English should gradually change from letters, words, phrases and sentence patterns, consolidate the foundation of foreign language learning, and naturally transition from quantitative change to qualitative change.
It is best to study English full-time on a zero basis, which can ensure very high learning quality and sufficient time, so that you have enough time to digest what you have learned. In the learning process of iBS, students are immersed in the world of pure English all day, away from the interference of life and work, and only concentrate on learning English.