I can't. If you don't sign after the exam of subject 4, your score will be invalid and you can't file. /kloc-You need to retake the exam in 0/0 days. Signing after the exam means that I took the exam and I accept the result. Not signing means giving up your grades. The examination results of each subject should be signed by the applicant and the examiner. Can not be signed for the record, not to issue a motor vehicle driver's license.