— did you put my glasses just now Bill?—On the desk.A. WhereB. WhyC. WhatD. When

问题补充：

— did you put my glasses just now, Bill?

—On the desk.

A. Where

B. Why

C. What

D. When

答案：

(答案→)A. Where

B. Why

C. What

D. When

解析：根据答语On the desk.（在桌子上）可知问句是问地点，所以用where，故选A。