选择正确的句子补全对话。

A. How many students are there in your class? B. Yes, we do. C. It's next to the library. D. Is this your classroom? E. It's the music room.

Mike:

Jack: Yes, it is.

Mike: Wow it's so big.

Jack: Forty﹣five.

Mike: Do you have a computer room?

Jack:   

Mike: Is that the art room?

Jack: No.

Mike: Your school is so beautiful.

Jack: Thank you.