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tom has finished his homework doesn't he

学习时间:2026-06-05 04:34:45 阅读：6590

tom has finished his homework doesn't heTom has finished his work,_____he?为什么用 hasn't什么时候用doesn't?讲解仔细点例题

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粗心的未来

粗暴的洋葱

2026-06-05 04:34:45

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因为前面是现在完成时态,有助动词HAS,故要用hasn‘t,不能用doesn't。
比较：Tom finishes his work,doesn't he?

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美满的月饼
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2026-06-05 04:34:45
因为前面是现在完成时态,有助动词HAS,故要用hasn‘t,不能用doesn't。比较：Tom finishes his work,doesn't he?

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