tom has finished his homework doesn't he

学习 时间:2026-10-22 11:01:51 阅读:7472
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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2026-10-22 11:01:51

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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  • 喜悦的奇迹
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    2026-10-22 11:01:51

    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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