#Person1#: Mr. : Are you Mary Lin?
#Person2#: Yes.
#Person1#: Mr. : I'm Mr. Rogers, your homeroom teacher.
#Person2#: Where should I sit?
#Person1#: Mr. : Why don't you sit behind Brad?
#Person2#: Who's Brad?
#Person1#: Mr. : He's that guy in the blue shirt.
#Person2#: When does the first period begin, by the way?
#Person1#: Mr. : As soon as the bell rings after the morning announcement.
Mr. Rogers asks Mary Lin to sit behind Brad and says the first period will begin when the bell rings.
homeroom teacher