waterproofing

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

"I brush my teeth regularly to prevent them from turning yellow."

"The storm did a lot of damage to the area."

"The student was a strong resistant, leading the group in their peaceful protest against the unfair school rules. "

"The manufacturer of the school's new computers is a well-known technology company. "

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

"The mechanic guaranteed that the car repair would be done by Friday. "

"He still has nightmares resulting from the treatment he received from his captors."

"The family kept their old bicycles in the basement. "

"The family is camping in the national park this weekend. "

"My raincoat has a good waterproof to keep me dry in the rain. "

"The storm during all night. "