What is the meaning of the idiom "To cry wolf"?

To give false alarm

The correct answer is to give a false alarm. The idiom "to cry wolf" comes from the Aesop's fable "The Boy Who Cried Wolf." In the fable, a shepherd boy repeatedly cries out that a wolf is attacking his flock, even when there is no wolf. Eventually, the villagers stop believing him, and when a real wolf does attack, the boy's cries for help are ignored.

The idiom "to cry wolf" is used to describe someone who repeatedly gives false alarms, so that when there is a real emergency, people no longer believe them. It can also be used to describe someone who exaggerates or lies about a problem.

The other options are incorrect. To listen eagerly means to listen with great interest. To turn pale means to become white or pale, often because of fear or shock. To be angry means to feel intense displeasure or hostility.