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

学习 时间:2026-05-30 03:48:32 阅读:1706
he ___for three years.A has joined the army B has been in the army 为什么选B

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刻苦的龙猫

诚心的香烟

2026-05-30 03:48:32

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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  • 幽默的雪糕
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    2026-05-30 03:48:32

    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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