Question

idiom: clammed up
example sentence: when the teacher asked him about the missing homework, he just clammed up and didnt
what does the idiom clammed up most likely mean?
started crying
spoke loudly
became silent

Explanation:

The idiom "clammed up" means to suddenly stop talking or become silent, often due to being nervous, reluctant, or not wanting to share information. In the example sentence, the person stops speaking when asked about the missing homework.

Answer:

Became silent