The word monitor has several meanings. Which meaning is used in this sentence?

Question

Cassie was chosen to be the class monitor this week.

A. a device that detects dangerous substances
B. a student appointed to help the teacher
C. a person who warns or gives directions to others
D. a device that displays video and is often attached to a compute

Answer 1

In the sentence "Cassie was chosen to be the class monitor this week," the meaning used is:

B. a student appointed to help the teacher.