smoothen

"The strong wind made it difficult to walk to school today. "

"The spilled milk ran to the edges of the table. "

"What make of car do you drive?"

"The plant dies if you don't water it. "

"The students will become at the school library at 9:00 AM. "

"The smooth transition between classes made it easy to get to my next lesson. "

"The student used a calculator to solve the math problem. "

"Before painting the walls, she used sandpaper to smooth out the rough spots. "

"The rough on the golf course was very long and difficult to play through. "

"Do what you will."

"On a recent windy day, hundreds of visitors climbed wooden stairs to take pictures in front of the glacier."

"The small lake behind the school building serves as a drain for rainwater runoff. "