问题
选择题
—I called you yesterday evening, but there was no answer.
—Oh, I’m sorry. I ________ dinner in my friend’s home.
A．have
B．will have
C．was having
D．have had
答案
答案：C
此题重点过去进行时的基本结构和基本用法。根据对语句的理解，再打电话时“我“正在朋友家吃晚饭，表示在过去是某个时间里正在进行的动作。