How come?还有用法

How come?还有用法 how come的用法? come的用法是什么?come后面是跟to do come还有什么其他用法? 英语why用法还有 what ,do .how .who .的用法 HOW COME... How come! how come 和 how is it 用法上有什么区别? How Come How Long How come that you don't have to go!How come=why,为什么还有在后面加tha thank you all for come 还有一些 l know how use a map 还有 the hosp how i wish to come with you 这类感叹句的具体用法是什么 就是how后面加陈述句么? come in,come ture,come out用法