how long have you 的用法这怎么用啊,说的通俗点,把多种语法都列出来

how long have you done与how long have you been的区别 How long have you been How long have you been skating?与How long did you skate?的区别 How long have you _______(have) this book?用所给词的适当形式填空 how long have you been like this的句子成分是什么? how long have you kept the book?的同义句. how long have you lived at this address的意思? how long have you been here 和 how long have you stayed here 的区别请问英语高手们,how long have you been here 和 how long have you stayed here 有什么区别? how long have you been in与how long have been to的区别,还有how long have been与前两者的区别. how long have you been learning english? How long have you been studying? How long have you been in China? how long have you been dancing today? how long have you studied in this How long have you been there? How long have you live in China How long have you ----(live)here? “How long have you been watching