How long have you been skating?与How long did you skate?的区别

How long have you been skating?与How long did you skate?的区别 How long have you been skating?How long did you skate?中文翻译的区 how long did you skate today?和how long have you been skating How long ( ) you ( A.did skate B.have been skating 在这可不可以选A? 英语翻译How long did you skate today?How long have you been skat How long have you been skating? how long did you skate? how long has Alison been skateing?与how long did Sam skate的区别 how long have you done与how long have you been的区别 how long have you been in与how long have been to的区别,还有how lon how long have you been skating?怎么回答 how long haveyoubeen和how long did you skate?什么区别?