---Is your Uncle Tom a soldier? ---No, but he once _______ in the army for 4 years. A. served B. is ...
2022-09-16 00:02:06 50次 江苏省南京市鼓楼区2018-2019学年高一上学期期中统考英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
---Is your Uncle Tom a soldier?
---No, but he once _______ in the army for 4 years.
A. served B. is serving
C. has served D. was serving
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