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"The student's espionage of test answers led to their expulsion. "

"My keys are somewhere in the house. "

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

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

"The electronic configuration of atoms is important in chemistry class. "

"The school implemented surveillance cameras in the parking lot to deter vandalism. "

"My grandfather was a skilled industrial during the 1950s. "

"The teacher eliminated the confusing question from the test. "

"The bakery's machinery worked tirelessly, producing dozens of loaves of bread each morning. "

"Letters are the elements of written language."

"She told him the machine was poorly built, but they both knew that she was the one who had malfunctioned."

"The software developer created a new app for students to study vocabulary. "