题目内容
8. My parents have been married for nearly twenty years,and they (never argue) with each other once.
8. have never argued句意：我父母结婚将近20年了，从没争吵过。时间是从结婚到说话时间，所以用现在完成时；后半句的主语they和argue是主动关系，所以用主动语态。
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题目内容
8. My parents have been married for nearly twenty years,and they (never argue) with each other once.
8. have never argued句意：我父母结婚将近20年了，从没争吵过。时间是从结婚到说话时间，所以用现在完成时；后半句的主语they和argue是主动关系，所以用主动语态。