Read the sentence.

The exhausted student decided to call it a night, hit the hay, and study more in the morning.

Which word in the sentence is most important to understanding the meaning of the idiom "hit the hay"?

exhausted

student

decided

study

The correct answer is A. The word "exhausted" is the most important to understanding the idiom "hit the hay."

The idiom "hit the hay" means to go to sleep. The student wants to go to sleep because she is exhausted. If the student were not so tired, she would not need to go to bed just yet.

Therefore, the word that best clarifies the meaning of the idiom is "exhausted."