An Exposition provides background information, introduces the main characters, and establishes conflict.
Okay, so I'm thinking that the answer is semantics, because syntax is the arrangement of words, learning acquisition is just the structure(I think), and grammar is the structure of language.
Hope that helped!
Uttering words in a low tone. Like if talking by to themselves.
I asked her, “Do you have any science homework”
Her and me is wrong it could be replaced with we us etc.