That is your pencil,__

That is your pencil,__ Is that your pencil是什么意思 同义句转换:Is that your pencil? is that your pencil?的否定回答 Is that your pencil?复数形式 Is that your pencil-box?后一句是什么 This is my pencil ,and that is your.改病句 is your pen in your pencil box (改为负数形式）__ __ __ in your penc 翻译：What is that in your pencil case? Is that your pencil sharpener.做否定回答 Is that your pencil case?做肯定回答 Is ( ) your pencil on that desk?那里填什么