knocking

"They looked at the landscape in admiration."

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

"He discovered penicillin largely accidentally."

"My teacher criticized my essay because it lacked supporting details. "

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

"The story of the student who got a perfect score on every test seemed incredible; no one believed it was possible. "

"His admittance to the university was a cause for celebration. "

"The undervalue of her antique vase meant the seller received far less money than it was truly worth. "

"My teammate helped me carry the heavy box. "

"Dumbstruck with joy, she was unable to express herself verbally, but the gratitude in her face was evident to all."

"The bully tried to denigrate Mark's artwork by calling it childish and messy in front of the whole class. "

"The archer practiced shooting arrows at the target. "