He will go to Las Vegas on her business next week(划线提问)——will he go to Las vegas next week

问题描述:

He will go to Las Vegas on her business next week(划线提问)——will he go to Las vegas next week
划线部分为on her business
是2个空- -我漏了一条

How come will he go to Las Vegas next week?
how come=why
他下星期去拉斯维加斯干什么?For what和how come哪个更对从你的问题来看,应该是中学的题目吧,那么用for what 更合适。