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

学习 时间:2026-10-10 15:32:15 阅读:5606
he ___for three years.A has joined the army B has been in the army 为什么选B

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失眠的乌龟

风趣的柜子

2026-10-10 15:32:15

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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  • 精明的雪糕
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    2026-10-10 15:32:15

    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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