◎ 题干
My father and my mother have been married for 30 years, and never once ______ with each other.
A.they have quarrelledB.did they quarrel
C.had they quarrelledD.have they quarrelled
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“My father and my mother have been married for 30 years, and never once ______ with each other.A.they have quarrelledB.did they quarrelC.had they quarrelledD.hav…”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  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。