Question

Which sentence contains an idiom?

Margo was over the moon when she hit her first home run in softball.
A group of mice is called a mischief, and a group of rhinos is called a crash.
While Earth has only one moon, planets like Saturn have more than 60.
Justin crept by the doorway, quiet as a mouse, because his sister was napping.

Answer 1

The first sentence has an idiom: over the moon

Step-by-step explanation:

Both the second and 3rd sentence do not contain figurative language

the 4th sentence contains a simile not an idiom