选择合适的句子补全对话。
A. Yes, we do.
B. This is my classroom.
C. Forty-five.
D. Your school is beautiful.
E. Where is the art room?
Kate: Welcome to our school.
Jack: How many students are there in your class?
Kate:
Jack: Do you have a library?
Kate:
Jack:
Kate: It is on the first floor.
Jack:
Kate: Thank you.