A.This is your book. | B.Is this a book? | C.Is this your book? |
A.Don’t talk. | B.Don’t run. | C.Don’t shout. |
A.Come in, please. | B.I’m sorry, Miss Li. | C.Open the door, please. |
A.Open the window, please. | B.Open the door, please. |
A.Don't run. | B.Don't walk. |
A.I'm too bad. | B.I'm sorry. |
A.Don't run. | B.Don't talk. |
A.Yes. | B.I’m sorry. | C.Thank you. |
A.OK. | B.I’m sorry. | C.Thank you. |