关于“how long is he staying”的问题

how long is he staying here?(变一般过去时) How long is he staying?He's staying ___ a week.A at B for C how long will he be staying解释具体的结构 be staying 为什么这么用 How long will you stay here?和How long will you be staying he -How long are you staying? How long are you staying 与How long do you stay的区别? How long are you staying 为什么用are和staying. -How long are you staying here? -____depends. -How long are you staying here?-____depends. 关于英语疑问句的语法What is he planted?（他种植了什么?）How long does his wife he is staying at a youth hostel 对staying后面的提问 i think he wil 关于How long的用法