Why not have something to drink?(同义句转换)------- ------- havin

Why not have something to drink?(同义句转换)_______ _______ having something to drink?
解释：why not do sth后面加动词原形,表示建议
通常与how about doing sth
what about doing sth
why don't you do sth进行同一句转换
所以答案是,HowWhat about having something to drink?