◎ 题干
I ________my homework while my parents _________TV last night.
A.did; have watchedB.was doing; were watching
C.had done; were watchingD.would do ;were watching
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“I ________my homework while my parents _________TV last night.A.did; have watchedB.was doing; were watchingC.had done; were watchingD.would do ;were watchin…”主要考查了你对  【一般现在时】【过去进行时】【过去完成进行时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。