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everyone has got a chance to give a speech,为什么是haven't they而

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everyone has got a chance to give a speech,为什么是haven't they而不是didn't he?不是have在前面表示“有”的意思的时候,反意疑问句后面才能用have,而其余只用does吗?
everyone has got a chance to give a speech,为什么是haven't they而
因为前面有助动词has ,故疑问部分可用hasn't he /she 或 haven't they
如果have/has 作实义动词时,疑问部分要用don't /doesn't +主语,或didn't +主语(一般过去时)
如 He often has breakfast at home ,doesn't he
They have 4 lessons in the morning ,don't they
They had a good time yesterday ,didn't they