Don't. According to official website, you don't need a college entrance examination password to fill in your volunteers, but you need to complete the process of filling in your volunteers in a certain period of time. After the results of the college entrance examination are announced, colleges and universities will announce the relevant time arrangements and operational procedures for volunteering. When filling in your volunteers, you need to know your college entrance examination scores, fill in the professional situation of the college where you are volunteering, the enrollment plan of the major you want to apply for, and so on, all of which need investment.