How long has he worked in the radio studio? Can you tell me.合并成宾语从句是he had worked 还是he has worked说明一下理由

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 .. 请问下哦,How long does he stay here?与How long has he stayed here?有什么不同? 3.——( )has he been in Beijing —— Since he was three years old.A How soon B How long C How often D when4.He tried ( )out the problem,but he failed.A to work B working C work D worked5.The doctor looked ( )him and then told him that there was n he lost his job a long time ago同义句he has ------ ------ ----- work for a long time -How long has his father worked in that city?-he has worked there s___ last year. 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 does he work 36、 “___ times has he visited the Great Wall?”“Twice.” A、How manyB、How muchC、How oftenD、How long Do you know how long( )English.A has he learned B he has learned C has he begun to learn D he has begun to learn 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 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 he ---------the job A found B changed C had How long has he ___(find;change;got;had) the job? How long has Tony been there ( )he left hes hometownthree years ago.