he ---for three years.A has joined the army B has been in th

学习 时间:2026-08-23 13:16:15 阅读:9729
he ___for three years.A has joined the army B has been in the army 为什么选B

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自信的保温杯

纯情的小懒猪

2026-08-23 13:16:15

因为join是一个短暂的动作,填完表,到军队上报过道,就算是入伍了。而be in the army则是持续性动作,所以在现在完成时里,选B has been in the army

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  • 勤劳的飞鸟
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    2026-08-23 13:16:15

    因为join是一个短暂的动作,填完表,到军队上报过道,就算是入伍了。而be in the army则是持续性动作,所以在现在完成时里,选B has been in the army

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