Toi nguyen the hoan dang ky cau lac bo cung duoc gan thang ko thay cac bac tra loi .toi rat yeu co tuong chua tim duoc cho choi de hoc hoi mong cac a e cho bit dieu kien tham gia nhe .co phai kiem tra ko hiii toi chi ham mo thoi chu choi cung chua bit sao