overzealous

"The impress of her hard work on her school project was evident in the high grade she received. "

"His constant complaining was a great annoyance to his classmates. "

"an enthusiastic lover of art"

"The school principal, a respected figure, announced that his decision was final. "

"My only is my younger sister; she's the only child in our family. "

"Do you want to come with?"

"It was worth the attempt."

"The student's fervent belief in her ability to succeed led her to study diligently for the exam. "

"She managed the team effectively, ensuring everyone completed their tasks on time. "

"My brother is tired, too. "

"The student was zealous about learning math, spending hours practicing problems. "

"I think this bird is a him, but it may be a her."