[originaltext]Do you know anything about trade law?(A)Yes, I have one at the o

Do you know anything about trade law?
(A)Yes, I have one at the office.
(B)No, I majored in literature in college.
(C)She is my mother.

Who did you speak with last night?
(A)It’s not very far from the office.
(B)Mr. Butler, the new manager.
(C)It was a good speech.