— Were you at home at that time?— No I dinner with my friends in a restaurant.A. haveB.

问题补充：

— Were you at home at that time?

— No, I dinner with my friends in a restaurant.

A. have

B. had

C. will have

D. was having

答案：

A. have

B. had

C. will have

(答案→)D. was having

解析：考查时态。有at that time，故用过去进行时。