exert

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

"The school's track and field team has many talented athletes. "

"Consider that we’ve had three major events and the year has hardly begun."

"My sister is very helpful, especially when it comes to organizing things. "

"The marathon runner had a vigorous training schedule. "

"Asphalt, composed of oil and sand, is a widely used material for roads."

"He injured himself."

"I have absolutely no influence over him."

"The student's action of studying diligently improved her grades. "

"The children's energy fueled their excitement for the school trip. "

"The student was exerting all her effort to finish the difficult exam. "

"The enemy had the advantage of a more elevated position."