问题
选择题
The old couple have been married for 50 years and never with each other
A．they had quarreled
B．they have quarreled
C．have they quarreled
D．had they quarreled
答案
答案：C
考查倒装句，否定词放在句首使用部分倒装。根据时态要前后保持一致，前半句是现在完成时态，后半句应该也是现在完成时态，never放在句首，使用部分倒装，所以选C。
