可分别改为：第一句：I haven`t got a red bag yet,一般疑问句：Have you got a red bag yet?第二句：I don`t have dinner at 7:00.一般疑问句：Do you have dinner at 7:00?第三句：They aren`t eating or drinking...He has dinner。是不是Hedoesn't have dinner.//Does he have dinner? 这里has要变成have的？has got 是个词组吗？能不能用 he doesn't have got以及does he have got...?这种形式？你好，是的，第二个问题,has got 是现在完成时的用法，不能用he doesn`t have got的，只能用hasn`t got,现在完成时时态是这样的：have/has + (already)+done./否定：haven`t/hasn`t + done+yet,疑问词也就是跟Do的类型一样，把have提前。不懂欢迎随时提问哦，来我的百度团也可以，问问团也可以哦，私信也可以哦。满意请速速采纳，谢谢合作！