tougher

"The children physically exhausted themselves playing tag in the park. "

"The subway train is undergoing a tunnel underneath the city. "

"Are you suggesting that I killed my wife?"

"The metal rod showed a noticeable deformation after the hammering. "

"The union negotiator met with the company representatives to discuss wages. "

"The rubber band was resilient, snapping back to its original length after being stretched. "

"The soup simmered on the stove."

"He threatened me with a knife."

"What is your question?"

"My sister's reputation for being organized helped her excel in school. "

"The weather forecast predicted rain for tomorrow, so I will bring an umbrella. "

"The complicated instructions on the new software difficult me from completing the project on time. "