___will you stay in America?___will you start?___will you be back_英语解答

___will you stay in America?___will you start?___will you be back?
how long ,how soon ,when
原因

人气：250 ℃　时间：2020-02-20 18:01:47

解答

how long用来询问一段时间有多长
how soon用来询问还要多久
when用来询问什么时候,即具体时间