The students attentively listened to the teacher in the classroom.

Meaning: The students were paying attention and listening carefully to the teacher who was teaching them in the room where classes are held.

Choice of Words: Students are people who are studying at a school or college. Attentively means to listen carefully and with interest. Listened means to pay attention to what someone is saying. Teacher is a person who teaches at a school or college. Classroom is a room in a school or college where classes are held.

Alternative Expressions

Related Expressions