She stayed in Shanghai for a week.这句话的问句可以用How long吗?
问题描述：
She stayed in Shanghai for a week.这句话的问句可以用How long吗?
或者 How soon?
这两个有什么区别?
答
How soon是对未来的事情还有多久能发生.比如：How soon will he come?他还有多久能来?
How long是对一个时间段提问
因此这个问句应该用How long.