Is this his ? Yes it is.A. a deskB. my deskC. deskD. the desk

问题补充：

Is this his ? Yes, it is.

A. a desk

B. my desk

C. desk

D. the desk

答案：

A. a desk

B. my desk

(答案→)C. desk

D. the desk

解析：这是他的课桌吗？其他选项不符语法。