He______in the army for ten years, and he retired last year.A、has servedB、had s

游客2023-09-24  24

问题 He______in the army for ten years, and he retired last year.

选项 A、has served
B、had served
C、served
D、had been serving

答案 B

解析 整个句子为过去时态,从时间状语for ten years可以判断这里表示过去持续的状态,所以用过去完成时,故选B。
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