unverifiable

"The teacher's encouraging words confirmed the student's resolve to study harder for the exam. "

"My brother offered an excuse for being late, saying his bus was delayed. "

"The being in the classroom was quiet today. "

"Please completely fill in the box for your answer, using a number 2 pencil."

"a claim of ownership"

"Before submitting the report, she carefully proven it for typos. "

"As everyone knew, he was capable of violence when roused."

"The pipe is blocked."

"Sentence: "The verified are easily recognizable on Twitter due to their blue checkmark badge." "

"Check the oil in your car once a month."

"He is a student of life."

"The factory workers' late started at 11:00 pm. "