---Could you tell me something about the boy in red?--- Sorry, I know nothing about him. We are_____ .
—How are you? —__________.
—________.Is this your baseball, Jane? —Yes, it is.Thank you.
Here _______ two nice photos ________ my family.
—Thank you for your help, Mr. Liu. —__________.
—Is that _________ schoolbag? —No, it isn't.It's _______.