You can't. Official website of Xiaoxiang Education Examinations Institute showed that the mobile phone number must be bound when taking the senior high school entrance examination in Xiaoxiang. The bound mobile phone number is the mobile phone number confirmed by the verification code when the examinee registers for the general college entrance examination. Candidates can check the binding status on the home page of the voluntary reporting system. Binding the mobile phone number is used to modify the password of the voluntary reporting system. If the mobile phone number is not bound, candidates must bring the admission ticket, valid ID card or proof materials required by the Admissions Office where the college entrance examination is registered, and go to Xiaoxiang Admissions Office to handle it.