英语新概念2,第一篇课文里有一句 why did the writer complain to the people b
英语新概念2,第一篇课文里有一句 why did the writer complain to the people behind him?这里为什么要加个did?去掉不影响翻译啊!难道疑问句需要加did?
最佳回答
陈述句变特殊疑问句,有be动词的把be 动词提前,没有be动词的要加助动词 do/ did/ has/ had 的。 再问: has/ had 也是助动词啊? 再答: 当它们用在现在完成时和过去完成时中的时候是助动词。 have done sth 例如: How many times have you been to America? has done sth 例如: How many times has she been to America? had done sth 例如: How many times had she been to America before she moved to America?
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2026-04-07 17:44:40瘦瘦的睫毛
回复陈述句变特殊疑问句,有be动词的把be 动词提前,没有be动词的要加助动词 do/ did/ has/ had 的。 再问: has/ had 也是助动词啊? 再答: 当它们用在现在完成时和过去完成时中的时候是助动词。 have done sth 例如: How many times have you been to America? has done sth 例如: How many times has she been to America? had done sth 例如: How many times had she been to America before she moved to America?
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