–Is this book yours ? – No it’s his is inbag .A. Mine myB. My mineC. Mine mineD. My

问题补充：

–Is this book yours ? – No it’s his , is inbag .

A. Mine , my

B. My ,mine

C. Mine mine

D. My ,my .

答案：

(答案→)A. Mine , my

B. My ,mine

C. Mine mine

D. My ,my .

解析：考察代词。Mine名词性物主代词，可做主语，表语； my形容词性物主代词，一般用作定语。句意：这是你的书吗？——不，这是他的，我的在书包里，可知前面用mine作主语，下文用my做定语。故选A。