Which of the following idioms means ‘going to sleep’?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Hit the sack.
"Hit the sack" is a common idiom that means to go to bed or go to sleep.
The other idioms have different meanings:
"Keep an ear to the ground" means to stay alert to new developments or information.
"Run around in circles" means to be busy with no real progress.
"Break new grounds" means to make a new discovery or create something new.