seminal

"My teacher explained the new math concept, and I understood it perfectly. "

"The development of this story has been slow."

"My sister is a biologist studying the effects of pollution on local river ecosystems. "

"The student used a microscope to see the tiny cells in the plant leaf. "

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

"The influential in our class was always asked for advice on projects. "

"My philosophy for dealing with difficult classmates is to listen carefully and try to understand their perspectives. "

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

"The scientific method is important in my school science class. "

"The American and French Revolutions brought significant changes to governance and society. "

"The idea for the school fundraiser originated with Sarah. "

"The school's new policy focuses on environmental sustainability. "