问题
选择题
The old couple married for 40 years and never once____ with each other.
A．they had quarreled.
B．they have quarreled
C．have they quarreled
D．had they quarreled.
答案
答案：C
句意：这位老夫妻结婚40年了，他们从来没吵过一次架。考查never表否定时，位于句首,引起部分倒装的结构。