underperforming

"The financial situation at home has improved since my uncle started his new job. "

"The teacher required the students to bring their textbooks to class every day. "

"It took him only twenty minutes to perform the task."

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

"The company needed more money, so they asked investors to buy shares. "

"He is an intellectual giant, and I have great respect for him."

"He is a student of life."

"Giving your children a good education is a wise long-term investment."

"Sarah was expected to get straight As, but she underachieved in her math class, getting only Bs. "

"Buying more servers would improve performance."

"The teacher had high expectations for her students' test scores. "

"The school has high academic standards, so students must study hard to succeed. "