- is my pencil case?-It’s on the desk.A. WhatB. HowC. WhoD. Where

问题补充：

---- is my pencil case?

---- It’s on the desk.

A. What

B. How

C. Who

D. Where

答案：

A. What

B. How

C. Who

(答案→)D. Where

解析：根据答语it’s on the desk。表示地点，故要用where来提问。