refuted

"He gave an incorrect answer to a simple question."

"You must do your homework before you can watch television."

"The teacher praised the student for the correctness of their answer. "

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

"The theory of gravity explains why objects fall to the ground. "

"My daughter's teacher is very kind and helpful. "

"There is no evidence that anyone was here earlier."

"He is a student of life."

"The students are already finished with their homework. "

"Before submitting the essay, I need to prove it carefully to find any typos. "

"The scientist studied the effects of different types of soil on plant growth. "

"He completed the assignment on time."