authenticates

"The teacher required the students to bring their textbooks to class every day. "

"The teacher asked each student to write their signature on the permission slip. "

"The teacher determined the rules for the classroom project, setting clear limits on the length of presentations. "

"Before starting the new job, I had to complete all the necessary formalities, such as signing contracts and filling out paperwork. "

"The notary's signature served as an attestation of the document's authenticity. "

"There is not sufficient access to the internet in many small rural villages."

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

"The twins share a striking identity; they look exactly alike. "

"The experts confirmed it was an authentic signature."

"The store displayed the new fall clothing in its front window. "

"I have the authority to penalise the staff in my department, but not the authority to sack them."

"The bank teller is verifying my signature to make sure it matches the one on file. "