问题
选择题
My father and my mother have been married for 30 years, and never once ______ with each other.
A．they have quarrelled
B．did they quarrel
C．had they quarrelled
D．have they quarrelled
答案
答案：D
题目分析：句意：我爸爸和妈妈结婚已经30年了，他们从没有吵过架。因为是从结婚到现在一直没有吵过架，用现在完成时，还有never这样的否定词放在句首的时候，谓语用部分倒装，助动词have放在主语前面，所以选D。