【北京市2015年中考英语试题】—____ T-shirt is this?— I think it’s Tom’s.
— Is your name Brown? —.
— Is this your pencil box? —Yes, ____________.
—Mom, where is my schoolbag? —______. Is it under the bed?
—____________? —They're fine, thank you.
—Is this your bicycle, David? —No, it's not . It's Helen's.