题目：
— What were you doing when I phoned you last night?
— I ______ my homework and was starting to surf the Internet.
A．have already finished
B．was finishing
C．was going to finish
D．had just finished
答案：
答案：D
题目分析：句意：——昨晚我给你打电话时，你正在干什么? ——我刚刚做完作业，就要开始上网。显然“做完作业”发生在“开始上网”之前，为“过去的过去”，用过去完成时。
