CEFR Level
a public notice or announcement promoting a product, service, or event
"The advertisement attracted many new customers."
Formal arrangements or understandings between two or more parties.
"Agreements strengthen partnerships."
a system that controls the temperature, humidity, and air quality in a building or room
"We turned on the air conditioner because it was too hot outside."
the yearly recurrence of a date marking a past event
"They celebrated their wedding anniversary with a dinner."