chipmunk

"The workers chipped the dead branches into mulch."

"Cosmic rays are energetic particles from outer space."

"The teacher explained the new math concept quickly. "

"I wanted to record every detail of what happened, for the benefit of future generations."

"The sailors pitched the hull of the wooden boat to protect it from the seawater. "

"no contest"

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

"The students in the math class were very competitive; they all worked hard to get the best grades. "

"A squirrel scurried up the oak tree in the park, its bushy tail twitching. "

"The contestant on the TV game show answered all the questions correctly. "

"The students stuffed their backpacks with textbooks and notebooks for school. "

"Wait a moment, while I lock the front door."