Tom,is this black bike ( )(you)?括号怎么填?your还是yours?为什么?为什么不是your？

Tom,this is M______ Black,Lucy's mother.如题. this is tom ,it is ( )penA.black his B.his a black C.his black D.a his 选择 this black bag is This pair of blue trousers is Tom's.The black trousers is Tom's too.哪里错了 Tom,is this black bike ( )(you)?括号怎么填?your还是yours?为什么?为什么不是your？ This is Tom speaking Tom is black and blue.急 this is a black mobile (对black提问 Is this Tom?怎么回答 this is ( ) tom 填冠词 is this Tom的回答 is this a postcard -----tom? this is tom _____(speak) this pen is black.中文意思 This pair () shoes is black and white This is my black trousers改错 excuseme.is this black coat(1)( Tom is the black sheep of his family.翻译下下