Answer:
False
Explanation:
It is not true that concrete terms can never be used in an abstract or symbolic way. A term might be concrete in a particular context, but become a symbol for an abstract idea in a different one, depending on the author's purpose and diction. This is possible because a symbol is usually an idea that stands for something else.
Agree, because I feel that it was justified.
Answer:
children were called by the teacher
Um, I think it is "proper grammar"? Not sure