取决于主语是不是第三人称单数.
比如: Do you have a cat?
Does she have a cat?
she是第三人称单数,所以要 用does.
望采纳,有问题可以继续问我������������ʾ��أ��������ʾ仹��Ҫ���Dz��ǵ����˳Ƶ�����磺who has the cat?what does this mean?