How long are you going to arrive in/at?是错的,应是How long are yo
How long are you going to arrive in/at?是错的,应是How long are you going to arrive?
How long are you going to arrive in/at?是错的,应该是How long are you going to arrive?
也就是How long是副词,arrive后不加介词?
How long整一个是不是疑问副词?