-Sandy,I called you at 9:00 last night,but nobody answered the phone.
-I’m sorry. We a birthday party Jerry.
A. had;with
B. were having;for
C. are having;for
D. had;for
网友回答
A. had;with
(答案→)B. were having;for
C. are having;for
D. had;for
解析：考查动词的时态用法。根据问话中提供的时间，可知是在过去这一具体时间做某事，且强调当时某事正在发生，因此用过去进行时。