firing

"The students are engineering a new system for managing their study group projects. "

"He discovered penicillin largely accidentally."

"Consider that we’ve had three major events and the year has hardly begun."

"My father's employment as a carpenter provides for our family. "

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

"The family took their sick cat to the veterinarian for a check-up. "

"My son consistently gets good grades in math class. "

"The temperature in the room dropped nearly 20 degrees; it went from hot to cold."

"The class watched a reenactment of the first Thanksgiving to learn about its history. "

"The information about the project deadline resolved my uncertainty; now I know what needs to be completed. "

"My brother threw the crumpled paper into the wastebasket. "

"the performance of an undertaking or a duty"