David doesn't have already finished his work.【♥Me YC♥】的回答，请及时点击【采纳为满意回答】按钮 ~~手机提问的朋友在客户端右上角评价点【采纳】即可。 ~你的采纳是我前进的动力~~O(∩_∩)O，互相帮助，祝共同进步！错了David hasn't not already finished his work。才对，采纳楼上啊David hasn't already finished his work。才对，多了个not我举报我自己了，