percentages

"The strong wooden beams are staying the roof of the old house. "

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

"It was for her benefit.   His benefit was free beer."

"A high percentage of secondary school leavers take a gap year."

"She regarded us warily."

"The bakery's profits increased this month because they sold many birthday cakes. "

"Many leavers believe that Brexit will create more opportunities for British businesses. "

"The cleaner came to our school today to clean the floors and the bathrooms. "

"The bird's secondary feathers are essential for its flight. "

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

"The teacher praised the students' similar answers on the math quiz. "

"The amount of atmospheric pollution threatens a health crisis."