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现在完成时陈述句变疑问句否定句 例子

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现在完成时陈述句变疑问句否定句 例子
现在完成时He has lived here since 1949.
疑问句;Has he lived here since 1949?
否定句:He hasn't lived here snice 1949.
再问: 如果是三人称是不是都用HAS 例如 she has finished my homework Has she finished your homework? she hasn't finished my homework
再答: 嗯对的!You are right!
再问: 谢谢,以后有问题还找你哈