问题
选择题
| The old couple have been married for 40 years and never _____. |
A. they had quarreled B. they have quarreled C. have they quarreled D. had they quarreled |
答案
答案：C
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| The old couple have been married for 40 years and never _____. |
A. they had quarreled B. they have quarreled C. have they quarreled D. had they quarreled |
答案：C