为什么 How long has Per_?Since 2004 选DA,been to BeijingB,become a policemanC,joined the art clubD,studied in this school

i wonder how long has he been away from australia 为什么不是i wonder how long he has been away .. how long has your sister been there.为什么不能用how many times How long----the film ------- A,did begin.B,How long----the film ------- A,did begin.B,has begun C,has been.D,has been 选哪个 为什么 英语现在完成时 How long has the film been on?为什么要用on?我认为答案是How long has the film been how long has the meeting()?AbegunBstartedCoverDlasted how long has the factory been open为什么open不用过去分词? How long has the shop__.A,been open.B been opened 答案是B为什么 How can you possible miss the news?It[ has been] on TV all day long.为什么? how long ______she________the bike?A has,had B has,bought C does,buy D is,buying 为什么 —_____ did your uncle leave his hometown?—He_____for nearly twenty years.A.When;has left B.When;has been away C.How long;has left D.How long;has been away选什么为什么 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 是how long has she been learning…还是how long has been she learning… 为什么是How long has he been there 而不是How long has he gone there how long has Jim been at this school?回答为什么要用since 3 years ago不用3 years ago?how long不是提问一段时间吗? Ian has lived here since 1976对since 1976提问为什么用how long how long 不是提问时间段的吗 how long did it last 为什么不用完成时 变成how long has it lastedhow long提问的后面一般都用完成时啊可是为什么在这句话里边通常都是用过去时呢? how long _____ the movie ____ since it began?only ten minutes A has,lasted为什么选A how long has he ( )the book?A.kept B.bought C.lent D.borrowed为什么选A啊