题目内容
---Your grandfather still seems very energetic, although he is already in his seventies now.
---Yes, he _______in the army for three years when he was young.
A. would serve B. served
C. had served D. has served
B
【解析】
试题分析:考查时态。根据第一句可知,“我爷爷”已经七十多岁了,第二句说的是他年轻时候在部队里待过三年,由此可知,在部队里是过去的事情,用一般过去时,故选B。
考点:考查时态
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