You can't. According to the relevant information of the inquiry committee, the class committee of a university is not allowed to keep students' homework privately, and it is recorded in the students' files as a class committee during the university. The files of students during their college years contain all the important materials since their admission. The class committee is an important student cadre, which is mainly responsible for establishing communication channels between the college and students and assisting the college to complete various daily affairs. It has an important position among student cadres, so it is recorded as the class committee.