How long have you been()playing basketball?为什么填practicing 为什

How long have you been()playing basketball?为什么填practicing 为什 how long have you been playing basketball ? How long have you been playing the piano?_______是填Since five How long have the students been playing basketball? A tow an "How long have you been 英语翻译How long have you been playing?It is so beautiful up the You look so tired .yes,I have been playing basketball How long have you ___Beijing?选填been in/been to /gone to 请分别解 How long have you been skating? How long have you been swimming? How long have you been ____? 1.How long have you been here?