—Istheschoolbagunderthedeskyours?   —No,it’smy

问题详情：

—Is the schoolbag under the desk yours?

    —No, it’s my______. He left it there just now.

  A. brother                       B. brother’s                 C. brothers’    D. brothers

【回答】

B考查名词所有格。

知识点：构词法

题型：选择题