当你想知道别人的年龄时,应该说 A. How are you? B. How old are you?
A: _______ that on the desk ? B: It's a photo.
A: This is your father's pen, I think. B: No, it's _______.
A: Is that your purse? B:_______ .
A: Where is Gao Shan? B:_______ .
A: May I have a rubber _______ my friend ? B: Sure.