问题描述:
how often (does) she stay up late?Does she (stay) up late?为什么第一个句子 (does)用第三人称单数形
how often (does) she stay up late?
Does she (stay) up late?
为什么第一个句子 (does)用第三人称单数形式,第二个句子 (stay)用原形
how often (does) she stay up late?
Does she (stay) up late?
为什么第一个句子 (does)用第三人称单数形式,第二个句子 (stay)用原形
问题解答:
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