问题描述: Why ____ come and join us?A.don't B.not you C.not to D.not 1个回答 分类:英语 2014-10-07 问题解答: 我来补答 D why not 后加动词原形,表建议相当于why don't you come and join us,所以 A 少了个you 展开全文阅读