翻译How long has this food store been in business?

翻译How long has this food store been in business? how long has it been since you have had this engine tuned ?麻烦人工翻译一下 填空:How long has Mr.Black been t_______in this school? How long has this factory been open这句话转变成这样可以吗How long has been factory open How long has he been in the hospital?翻译 How long-this library-? How long have you felt like this? 翻译 I wonder how long ago this school_ A.has begun BI wonder how long ago this school_A.has begunB.beginsC.BeganD.had begun How long has this shop(）?Abe openB been open C opened Dbeen opened how long this factory (开办) Which is correct.Please explain it.1)How long has it been since this company was established?2)How long has the company been established? 紧急求助英语,How long has this shopHow long has this shop________________?A.been open B.been opened请问大侠们选那个答案,请给出原因. I wonder how long ago this radio factory-----a has begun b begins c began d has started How long has it been since this company was established?since this company was established?是表语从句? 英语翻译这样翻译对么?How long has he been in Hongkong?For about two months. 翻译How the mind perceives the body has long been a vexing question how long has the game it been since the game of basketball was invented? 翻译 How long has Greg been working on his degree--- five years?请翻译