— What were you doing when I phoned you last night?
— I ______ my homework and was starting to surf the Internet.A.have already finishedB.was finishingC.was going to finishD.had just finished
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D解析试题分析：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。
考点：考查动词的时态