Hi, Ivy. I'll ask him to practice these words more, make sentences using "These" and "Those", and apply them in daily life. Recently, we've been preparing for the final exams, so there might not be enough time for practice. But I'll have him make up for it later. He received an award in today's English class at school. I wanted to share this news with you. I believe this is the result of his consistent learning with you, and it also affirms your teaching. Thank you very much. We'll keep working hard!