define

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

"As soon as we ascertain what the situation is, we can plan how to proceed."

"The teacher determined the rules for the classroom project, setting clear limits on the length of presentations. "

"The violinist was a master of her instrument."

"The teacher elaborated on the history of the Roman Empire, explaining many details about their daily life. "

"Salt is an essential for cooking a good soup. "

"The anarchist argued that the school's strict rules were unnecessary and hindered student creativity. "

"The new teacher worked hard to establish a routine in her classroom. "

"The fence clearly marks the boundaries between our yard and our neighbor's yard. "

"My sister's joyful expression showed how happy she was about the good news. "

"The teacher explained the lesson thoroughly throughout the entire class period. "

"The surgeon's precision during the operation ensured a quick and successful recovery for the patient. "