locking

"The school bully was the antagonist in many students' lives. "

"The instructor explained the new math concept clearly to the students. "

"The school bus was vandalized with spray paint overnight. "

"He discovered penicillin largely accidentally."

"The engineers designed a new water filtration system for the school. "

"This question arises frequently."

"I accidentally saved my unwanted changes and overwrote the version of the document I wanted to keep."

"Can you demonstrate the new tools for us?"

"My family has a different ideal for my future than I do. "

"The baker used two strands of dough to intertwine them into a braided loaf of bread. "

"Currently, I am working on my history assignment. "

"The professor's lecture was very argumentative, presenting a clear and logical case for her theory. "