M.n đọc kĩ giúp mk đoạn văn này xem những chỗ nào dùng từ sai, ngữ pháp sai, hoặc lặp từ nhiều thì sửa hay nhận xét giúp mk nhá. Bài này mk đem nộp cô b) I think it is necessary for secondary school students to wear casual clothes when they are at school 1. Firstly, all students feel comfortable wearing casual cothes, and casual clothes are very convenient 2. Secondly, students will feel confidents wearing the clothes they love to school and share them with their friends. 3. Thirdly, deressing in casual clothes gives students the freedom to choose sizes, colors,... So they are suitable for each preson anh fashionable Finally, students dressed in casual clothes makes the school more colonful and lively and all students will find it easier to get to know each other and make friends. Therefore, students in secondary schools should wear casual clothes.