The old couple have been married for 40 years and never once ________. A. they had quarreled B. they...
2022-10-02 17:12:51 154次 江苏省牛津译林版英语Module 5 Unit 1 test2 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The old couple have been married for 40 years and never once ________.
A. they had quarreled B. they have quarreled
C. have they quarreled D. had they quarreled
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