How long has he been skating?答语三种,一个是for 一个是since（两种）

为什么是How long has he been there 而不是How long has he gone there How long has he been in the hospital?翻译 i wonder how long has he been away from australia 为什么不是i wonder how long he has been away .. long has he been away? What does Bob collet.He collects kites.How long has he been collecting kites.He's been kites sinc 英语翻译这样翻译对么?How long has he been in Hongkong?For about two months. how long has he ---?since 2004 填been to Beijing 填she 还有一个噢,How long has he been skating?也是答语三种哦 . How long has Tony been there ( )he left hes hometownthree years ago. how long后面要加什么动词?问题补充：how long 后面的动词一定是延续型动词吗?比如要用 How long has he been away from China?而不是How long has he left China? How long is it since he () his hometown?He () for nearly 10 years.A left;left Bhas left ;has leftChas left ;has been left Dleft ;has been left 是how long has she been learning…还是how long has been she learning… How long has he _ Beijing?A gone to B gone C been in D been to 英语41.How long _______ the army?41.How long _______ the army?A.has he joined B.has he served in C.has he been D.ago has he gone to为什么 A:He coubhs badly and can ont sleep at night.B:How long has he been ( ) this? I want to know how long _______? A. has he been back B he has been backI want to know how long _______.A. has he been back B he has been back哪个啊 为什么I didn't know how _____ to London?A would they go C they would go 用have(has)been或have(has)gone填空where Li Fei ?He to Hainan Island.How long he there?He there for three days. __did your uncle leave his hometown?He ___ for twenty years.A when ,has been awayB how long ,has been away,选哪个,为什么,