You can't. National civil servants are not allowed to attend cram schools outside. According to Article 53 of the Civil Service Law, civil servants must abide by discipline, and may not engage in or participate in profit-making activities, or hold concurrent positions in enterprises or other profit-making organizations. Civil servants refer to staff members who perform public duties according to law and are included in the state administrative establishment, and their wages and benefits are borne by the state finance. According to the nature, characteristics and management needs of positions, civil servant positions are divided into comprehensive management, professional technology and administrative law enforcement.