-----I called you last night but there was no answer.----I’m sorry I dinner with my f

问题补充：

-----I called you last night, but there was no answer.

------I’m sorry, I dinner with my friends outside.

A. have

B. had

C. was having

D. have had

答案：

A. have

B. had

(答案→)C. was having

D. have had

解析：句意：我昨晚给你打电话，但没人接。对不起，我和朋友在外面吃饭了。根据题意可知，吃饭是在打电话的时候，故用过去进行时。所以本题选C。