unusual

"My friend told me there was something in the box, but I didn't know what it was yet. "

"The sudden announcement of a school holiday surprised everyone. "

"The student's perfect score on the normally difficult math test was an anomaly, raising suspicions of cheating. "

"Absence makes the heart grow fonder."

"The school principal is an ordinary of the students' behavior. "

"Everyone in the class needs to bring their textbook to the first lecture. "

"He is a student of life."

"The usual for Sarah on school mornings is getting ready quickly. "

"I will do it, though."

"I solved all of the acrosses, but then got stuck on 3 down."

"He lectured for quite a long while."

"He has a real talent for drawing."