⑴Don't shout in the library.   

⑵What's this?   

⑶Is this your book?   

⑷Would you like a pie?   

⑸Open the window, Liu Tao.   

⑹Good evening, Mr Black.   

⑺Look at my new rubber.   

⑻Where's your mother?   

A. OK, Miss Li.

B. Good evening, Mr Green.

C. I'm sorry.

D. How nice!

E. It's a rubber.

F. Yes, it is.

G. She's in the library.

H. Yes, please.