These trainers are . Theirs in the locker.A. my isB. my areC. mine isD. mine are

问题补充：

These trainers are . Theirs in the locker.

A. my, is

B. my, are

C. mine, is

D. mine, are

答案：

A. my, is

B. my, are

C. mine, is

(答案→)D. mine, are

解析：句意：这双运动鞋是我的；他们的在柜子里。my 我的，形容词性物主代词，后面修饰名词；mine我的，名词性物主代词；theirs 代替的是trainers ，故动词用复数形式。故选D。