behave

"He is a student of life."

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

"The school board will regulate the dress code for students next year. "

"The children were excited to go to their classroom in the morning. "

"The adverbial "happily" shows how the student reacted to the good grade. "

"Teaching oneself to swim can be dangerous."

"Please listen carefully as I explain.  I like to listen to music."

"Go easy on him: he is but a child."

"The specific of her success was her dedication to studying. "

"My discussion with the professor was very enlightening."

"You should do your homework yourself. "

"The teacher's conduct of the class ensured a smooth and orderly learning environment. "