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.