alerted

"The teacher warned the students about the upcoming test. "

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

"My mom spends most of the morning in the kitchen, preparing breakfast for the family. "

"She’ll be coming ’round the mountain when she comes [...]"

"I have a house and a car."

"The teacher warned the students about the upcoming test. "

"The school's alarm announced the approaching fire drill. "

"She is an attentive listener, but does not like to talk much."

"Everyone in the class needs to bring their textbook to the first lecture. "

"Walking home from school late at night poses a danger to your safety. "

"The town council alarmed the residents when they learned of the potential threat of flooding. "

"The smoke from the burning leaves filled the air. "