sustained

"Her confidence in her ability to speak French helped her to participate more in class discussions. "

"The hikers packed enough provisions, like dried fruit and nuts, to last for three days on the trail. "

"The accusation of cheating damaged the student's reputation at school. "

"I encouraged him during his race."

"My teacher made a proposition for a new class project: a school-wide recycling drive. "

"The river continuously flows to the sea, it will never pause to let us cross on dry land."

"It was an experience he would not soon forget."

"The witness's statement corroborated the victim's account of the incident. "

"The school's library, a large superstructure, is built on top of the main building's roof. "

"The earthquake shook the school building during recess, causing some minor damage. "

"the performance of an undertaking or a duty"

"The foundation of his institute has been wrought with difficulty."