so he must stay in bed for a week.句中stay为什么不加s
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so he must stay in bed for a week.句中stay为什么不加s
so he must stay in bed for a week.句中stay为什么不加s
so he must stay in bed for a week.句中stay为什么不加s
must是情态动词,后面+do (动词原形) 情态动词还有can,may,need等等
must 是情态动词,stay是动词,情态动词后跟动词原形
must do sth
must 后面跟动词原形
must后面接动词原形。
so he must stay in bed for a week.句中stay为什么不加s
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he must stay in bed.he 是第三人称 为何 must 或这 stay 不用加s呢?
so he must stay in bed for a week因此他必须卧床一周 这句话he是第三人称为什么动词stay没有换成stays,还有就是解释一下for在这句中的用法
must stay in bed可以说成stay
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in bed 是同样的道理吗?但是He must stay in bed.怎么翻译呢?
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he—stay in bed for weeks. A,has to. B,had tohe—stay in bed for weeks.A,has to. B,had to. C,must D,can选什么?