Is it possible for four people to stand by and watch? Do three people have tickets?

No According to the information of official website Railway 12306, we have placed a standby order, and the order has been supplemented by four tickets. When cashing, four tickets are cashed together, not just three. Alternates refer to officials who have not been granted real vacancies since ancient times. After the official department obtains the candidate qualification, the official department will compile a list of petition distribution officers, and draw lots once a month according to their positions, qualifications and shifts, and assign them to a certain department or province for use by the Committee, which is called standby.