－Is this ruler?－No it isn’t. It’s .A. your mineB. her hisC. his herD. your her

问题补充：

－Is this ruler?

－No, it isn’t. It’s .

A. your, mine

B. her, his

C. his, her

D. your, her

答案：

A. your, mine

(答案→)B. her, his

C. his, her

D. your, her

解析：句意：这是她的尺子吗？不，它不是。它是他的尺子。前一空后有名词，该用形容词性物主代词，后一空后没有名词，该用名词性物主代词，所以选B。