— did you have dinner last night? —In a restaurant.A. WhereB. WhyC. WhenD. What

问题补充：

— did you have dinner last night?

—In a restaurant.

A. Where

B. Why

C. When

D. What

答案：

(答案→)A. Where

B. Why

C. When

D. What

解析：根据答语的内容In a restaurant，可知答案为A，表示问地点的。