A-A+
The old couple have been married for 40 years
问题详情
The old couple have been 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
参考答案
正确答案：C
第二分句中因有否定副词never提前，故应用倒装结构；第一分句中的have been married已限定了时态，据此可排除D项。（本解析由学员提供）
