whydon’t后面加什么

　　例句：

　　Why don't you have a quick kip?

　　你为什么不小睡一会儿呢？

　　Why don't you get yourself a car?

　　你为什么不买辆汽车呢？

　　Why don't you give him up?

　　你为什么不与他一刀两断呢？

　　Why don't you come skating tonight?

　　今晚来溜冰好吗？